* Astronomy

New insights into what might trigger the eruption of Mount St Helens and other potentially explosive volcanoes are reported today in Nature by scientists working at the University of Bristol, UK. Professor Jon Blundy and colleagues show that as magmas crystallise they heat up rather than coo...

The Soufriere Hills Volcano on Montserrat produced a faint but steady plume of ash on September 4-5, 2005. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard the Aqua satellite took this picture on September 5th 2005. [img]https://i9.photobucket.com/a...

Teams of scientists have been sent to the Valley of Geysers, on the Kamchatka Peninsula in the far east of Russia, to report on the condition of the World Heritage site after a massive landslide in the Kronotsky national reserve. The slide, which lasted only seconds on 3 June, loosed an estimated 4.5 m...

The Karymsky Volcano on the Kamchatka Peninsula in eastern Russia released a faint plume on November 29, 2006. The Terra satellite took this picture as the plume blew eastward over the ocean. East of the plume, brighter white clouds dotted the sky. Credit NASA Latitude: 54...

Klyuchevskoi, volcano on the Kamchatka Peninsula erupted at about 8 a.m. GMT, sending volcanic ash and Ash plumbs high into the atmosphere. The volcanic dust cloud has already spread 35 kilometres to the southwest of Klyuchevskoi. Volcanologists had predicted the volcano was due to erupt thre...

According to the National Geophysical Institute of Ecuador, an increase in the volcanic activity of the Tungurahua Volcano has been recorded since 10 May 2006. Since then, strong explosions and hundreds of tremors have been registered, with moderate and strong emissions of steam and gas, and ver...

Mexicos so-called "Fire Volcano" erupted today spewing lava and glowing rocks in its biggest explosion since 1999. A huge grey column of smoke billowed into the evening air from a crater of the 3860m volcano in the western state of Colima, according to television images. The "[...

Augustine Volcano in the Gulf of Alaska erupted on December 12, 2005, sending a plume of ash and steam approximately 80 kilometres toward the southeast. The Aqua satellite captured this image the same day. In the image, the volcanic plume streams from the tiny, snow-capped volcanic island and diss...

The volcano Anatahan still showed signs of activity when the Moderate Resolution Imaging Spectroradiometer (MODIS), flying on the Terra satellite, acquired this image on May 25, 2005. Volcanic tremors occur when magma rises inside the volcano or when the volcano erupts. In th...

Ulawun Volcano A wispy plume of steam rises from the Ulawun volcano on the Papua New Guinean island of New Britain in this photo-like Moderate Resolution Imaging Spectroradiometer (MODIS[img]http://earthobservatory.nasa.gov/NaturalHazards/Archi...

On the 24 May the Colombian government ordered the evacuation of ~9,000 people living near the volcano Galeras due to an increased activity. During 16-23 May, small shallow earthquakes occurred beneath the volcano. There was an increase in earthquakes associated with fracturing with...

Indonesia has prepared to evacuate thousands of villagers after Mount Merapi a volcano in the heart of densely populated Java Island started spewing thick clouds of smoke and hot lava. The 2911-meter high Mount Merapi overlooks the ancient city of Jogjakarta, the capital of Central J...

Officials urged a small farming town in southern Peru to evacuate on Tuesday after a volcano sent smoke and ash 792 metres into the air, but residents were reluctant to leave. "A yellow alert has been called, which means precaution due to emission of gases and steam. Civil Defence has sent sma...

Three Alaska volcanoes, including two located on remote Aleutian islands, are setting off frequent tremors and minor bursts of ash or steam. Cleveland Volcano, 900 miles southwest of Anchorage, had a small eruption on Friday. An ash plume rose to a height of nearly 15,000 feet above sea l...

Salvadoran authorities activated emergency plans on Tuesday as a western volcano, Ilamatepec ,continued to spew gas and vapour in what experts said was a "significant increase" in activity. The renewed energy was first detected on Saturday, when experts from the National Service o...

Flows of lava accompanied by showers of molten rock shooting into the sky have forced villagers living close to a volcano in eastern Indonesia to shelter in schools and churches, officials said on Saturday. Dali Ahmad, an Indonesian vulcanologist, said by telephone that there did not appear t...

Mt. Bulusan exploded again at 10:44 a.m. yesterday, spewing a column of ash that reached 1.6-km high into the sky and showering surrounding villages with ash. The Philippine Institute of Volcanology and Seismology said steam inside the volcano ejected the ash. There were no reports of casu...

The Bezymianny volcano has erupted on the Kamchatka peninsula in Russia's Far East. The eruption started at 08.25 a.m. GMT on Tuesday. "A column of gases and ashes over the crater have reached the altitude of several kilometres...and avalanches of melted debris have been moving down t...

The 2,964 meter high Nyamulagira volcano erupted at 20:00 GMT on Monday near the eastern Congolese town of Goma, which was devastated by a volcanic eruption in July 2002, but this latest eruption is not threatening to the town, but lava flows may affect the surrounding Virunga national park. Viru...

The 10-km-wide island of Manam is a 1807 metre high basaltic stratovolcano 12 km north of Papua New Guinea. Latitude: 4.10°S Longitude: 145.061°E Credit NASA Manam Volcano continued to emit a volcanic plume of ash and steam on May 25, 2006. The Aqua satellite...

Mount Etna, one of the world’s most active volcanoes, erupted in late October 2005. In mid-November, it was still emitting a sporadic plume of ash. The Moderate Resolution Imaging Spectroradiometer (MODIS) flying onboard the Terra satellite captured this image of Etna on November 12, 2005....

Vanuatu the volcano, on the remote South Pacific island of Ambae, erupted on Thursday - shooting steam and toxic gases 9,845 feet into the sky. Ash was spewed above the Island to reach the greatest height seen since Mount Manaro, which cradles a volcanic lake in its crater, began eruptin...

HAWAII VOLCANOES NATIONAL PARK, Hawaii About 44 acres of coastline collapsed into the ocean this week, setting loose a glowing stream of lava that shot out from the newly exposed cliffside 45 feet above the water. The plume, 6 feet in diameter, sent up a tower of steam as it hit the water and be...

Anatahan Volcano has been putting out gas and steam plume that have moved into Saipan and Tinian, according to the Emergency Management Office yesterday. EMO said concentrations of volcanic gases should be low, but that the haze and odor ma...

Talang Volcano (also known as Salasi or Sulasih) is located in Sumatra. There are two crater lakes on the 2,896 m high volcano, the largest being Danau Talang. In April 2005 an eruption of Talang sent ash 1000 metres high. Over 40,000 people were evacuated from the volcano. [url=http://s...

Nicaragua's 1,090-meter high Telica volcano has produced a series of explosions that sent a plume gas and dust 500 metres above the crater. "The volcano has seen explosions and abundant gas and ash emissions since three in...

Scientists drilling into the Orakei Basin in Auckland have found the Orakei volcano is probably three times as old as previously thought. A group of geologists from government-owned researc...

A minor explosion at Mayon, southeastern Luzon, Philippines on 21 February at 09:41 local time (17:41 GMT) produced an ash plume that rose to ~500 m above the volcano's 2,462 metre high crater and drifted SW. Ash was deposited on the upper slopes of the volcano. The ash emission was accompanied by a sm...

Crater Lake is formed from the caldera of Mount Mazama. Part of the Cascades volcanic chain, Mount Mazama is situated between the Three Sisters volcanoes to the north and Mount Shasta to the south. The catastrophic eruption of Mount Mazama that occurred approximately 7,700 years ago destroyed the...

A magnitude 4.5 earthquake struck just before 8 p.m. about 7 miles east of Mount Rainier on Saturday night, but no injuries or damage were reported. Scientists know Mount Rainier will eventually awaken as Mount St. Helens did in 1980. It could gradually build up and explode, or part of it may coll...

A team of scientists returned this month with new and dramatic video and sound recordings of an ongoing volcanic eruption underneath the deceptively calm waters of Rota Island in the Northern Mariana Islands. Video of billowing ash plumes, molten sulphur droplets, and red lava jetting from a...

Mount Sakurajima, in southern Japan, has erupted at 08:30 GMT, (5:30 pm local time), on Wednesday. According to the Japanese Weather Agency, ash was blown 1,000 metres into the air. There were no immediate reports of damage or injuries. Webcam 1 [url=...

Deception Island is a volcanic caldera, which formed a natural harbour when the caldera collapsed. The harbour is called Port Foster. The Island is in the South Shetland Islands, on the Bransfield Rift where the rift is offset by a short ridge-ridge transform fault . 700000 years ago, volcan...

Vilama Caldera in Argentina may be just one of several unappreciated supervolcanoes hidden in a veritable mega-volcano nursery called the Eduardo Avaroa Caldera Complex, located in the inhospitable Puna-Altiplano region near the tri-section of Argentina, Bolivia, and Chile. "Vilam...

Mount Hekla is one of Iceland's most active volcanoes. It was known to islanders as the "Gateway to Hell" - with good reason. When it erupted in 1159 BC the effects were felt hundreds of miles away. In Scotland the whole of the west coast was devastated. A sulphuric cloud of ash and acid rain fell...

Dozens of newly discovered volcanoes in a stretch of the Pacific Ocean pose a major tsunami risk due to the area's seismic instability, an Australian geologist warned on Thursday. Research teams from the United States, Germany, Australia and New Zealand have discovered 75 previously unknow...

A control post officer assigned to Indonesia's Mount Slamet said Sunday the volcano's activity has increased after the area endured heavy rains. The officer said the increased activity at the volcano in the Central Java province was v...

Two new New Zealand volcanoes discovered. Geologists have discovered two new underwater volcanoes off the north-east coast of New Zealand. The Geologists were working in the Kermadec Arc, near Raoul Island, when they made their discovery. The volcanoes are relatively small, with crater...

This week, researchers will begin direct monitoring of the rumblings of a submarine volcano in the south-eastern Caribbean Sea. On May 6, a team of scientists led by the Woods Hole Oceanographic Institution (WHOI) installed a new underwater earthquake monitoring system on top of Kickem Jenny, a v...

More than 30 years ago, eruptions of steam and ash from Mount Baker prompted the evacuation of the Baker Lake area and sent jitters through Whatcom County. Before scientists could understand what was going on inside Baker, its sister to the south Mount St. Helens roared to life, stealing the show and...

Scientists studying hydrothermal vents, those underwater geysers that are home to bizarre geological structures and unique marine species, have discovered something all too familiar: pollution. A University of Florida geologist is among a team of geologists that is the first to observe “...

Water supplies to more than 100,000 people in the Indian Ocean Comoros islands have been contaminated by the eruption of one of the world's largest active volcanoes. Mount Karthala sent clouds of ash and sparks flying late on Thursday, leaving the capital Moroni and other villag...

Visitors are being warned not to enter the crater of Mt Ngauruhoe in Tongariro National Park, New Zealand, due to an increase in its volcanic alert level. The Institute of Geological and Nuclear Sciences says very small earthquakes under the volcano have increased over the past month to up to 50...

Mount Shevutich, a volcano on the Russian far-eastern Kamchatka Peninsula, is spewing gas and ash to heights of up to 5,000 feet. Satellite images show clear signs of a thermal anomaly in the area. Residents nearby might face ashfall and mud slides from the slope of Mt. Shiveluch. A...

Two volcanoes in the Tibesti Range Mountains in northern Chad exhibit dramatically different surface characteristics in a topographic image. The difference in their appearance is due to their relative ages and eruptive history. The composite image was captured by NASA's Terra satellite o...

Brown and almost barren, Anak Krakatau rises out of the Sunda Strait, the narrow band of the Indian Ocean that separates the Indonesian islands of Sumatra and Java. [url...

The Chico volcano on Isabela island, in Ecuador's Galapagos Islands, erupted late Saturday with a powerful explosion that spewed rivers of lava and a column of steam 20km high. The nearby main town, Puerto Villamil, 25km away, was left unscathed by lava flows Residents of the island's main tow...

ESA's micro-satellite Proba observes the active Bromo volcano, a popular tourist attraction of East Java in Indonesia. Indonesia is located within the Pacific 'Ring of Fire' volcano belt and has more than a hundred active volcanoes within its territory. With around 200 mill...

Veniaminof volcano, one of the highest (2,507 m) and largest volcanoes on the Alaska Peninsula, is truncated by a steep-walled, 8 x 11 km, glacier-filled caldera that formed around 3,700 years ago. The caldera rim is up to 520 m high on the N, is deeply notched on the W by Cone Glacier, and is covered b...

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The Yellowstone caldera has been classified a high threat for volcanic eruption, according to a report from the U.S. Geological Survey. Yellowstone ranks 21st most dangerous of the 169 volcano centres in the...

Mount Ebeko, a volcano on the island of Paramushir, which belongs to the Northern Kuril chain in Russia's Far East, has started emitting vapour and gas for the first time since spring. The Russian Emergency Situations Ministry's Sakhalin department said vapour and gas emissions had b...

Twin plumes of steam rising from the Cape Douglas area have Alaska Volcano Observatory scientists puzzled — and hoping for clear weather to figure out what’s going on. "It’s not in a place where we expect to see steam" - Rick Wessels, a U.S. Geological Survey geophysicist with the Alaska...

Volcanic Activity on Pagan Island released a plume of ash and/or steam in early December 2006. The Terra satellite captured this image of the volcano on December 6, 2006. In this image, the plume appears slightly darker than the nearby cloud cover. While the clouds are white, the plume is pale beig...

The long-dormant Nevado del Huila volcano erupted late Tuesday and early Wednesday, provoking avalanches and floods that swept away houses and bridges and prompted thousands to evacuate. "There are 10,000 people in the zo...

Authorities warned thousands of people on Lembata Island, East Nusa Tenggara (NTT) to prepare to evacuate after a volcano started spewing rocks and lava. The 748-metre Batutara volcano , which began rumbling last week, released hot lava and rocks over the last two days and shot clouds of hot air as...

An underwater volcano has been discovered just off the shores of Sicily. The volcanic structure, which incorporates peaks previously thought to be separate volcanoes, was named Empedocles after the Greek philosopher who named the four classic elements of earth, air, fire and water. Legend...

New activity has started at Reventador volcano. The volcano in Ecuador's Andes erupted Friday, shooting plume of ash nearly two miles into the sky but causing no injuries or damage. In early March, the number of tectonic earthquakes from Reventador had increased. During 8-22 March, steam-and-as...

Huaynaputina (Quechua: "New Volcano") is a stratovolcano located in a volcanic upland in southern Peru, 4850 m. The volcano does not have a vividly identifiable volcanic profile. On February 19, 1600 it exploded catastrophically (Volcanic Explosivity Index or VEI 6), in the largest...

Dukono Volcano on Halmahera, Indonesia, released a plume of ash and/or steam on December 5, 2006. The Terra satellite captured this image the same day. In this image, Dukono’s ash plume peeks out from under fluffy white clouds clustered over the volcano’s summit. Latitude:, 1.68°N, L...

Volcanoes may have a stronger cooling effect on the Earth than previously thought, an Open University team says. In Geophysical Research Letters, the UK scientists say large eruptions can kick off a contest between different types of bacteria in peat bogs and wetlands. Scientists know dust a...

Title: Gigantic SO2 emission from Miyakejima volcano, Japan, caused by caldera collapse Authors: Kohei Kazahaya, Hiroshi Shinohara, Kozo Uto, Masanobu Odai, Yasuhiro Nakahori, Hirokazu Mori, Hideki Iino, Makoto Miya****a, Junichi Hirabayashi An extremely large amo...

There’s been a prediction that the Matavanu volcano on Samoa’s Savaii island will erupt again in the next decade. The volcano last erupted a century ago spewing lava for miles and nearly wiping out the entire population of villages bordering Saleaula. Some of the villagers resettled in Leau...

Three days after an earthquake struck Java, on May 27, 2006, the island’s Semeru Volcano showed signs of heightened activity. Latitude:, 8.108°S, 8°6'30"S. Longitude:, 112.92°E, 112°55'0"E. Credit NASA NASA’s Terra satellite took this picture on May 30, 2006....

Title: Simulations of the 30 December 2002 Stromboli tsunami, Italy Authors: Tinti, S.; Pagnoni, G.; Zaniboni, F.; Armigliato, A. Stromboli is a volcanic island in southern Tyrrhenian sea, Italy, known to have unstable flanks. The Sciara del Fuoco (SdF) on its NW flank is a...

Mount Gamkonora erupted yesterday at 14:50 hrs East Indonesian Time. Mount Gamkonora is located 3.5 hours from Ternate, capital of North Maluku Province. The mountain has erupted lava, and dust is now piling up to 30 cm high within a radius of around 7.5 km from the epicentre. It has been reported th...

A large part of the growing lava dome on Mount St. Helens fell Saturday, sending an ash plume above the crater rim. A rock fall had caused what scientists called a "substantial seismic signal'' and knocked the chunk off the lava dome, which rises from within the main crater that was created in the m...

This image of Mt. Pinatubo was taken by the Advanced Land Observing Satellite (ALOS) Daichi in November 2006. The figure looks dark green for the most part, indicating that the area is covered with forest or jungle. There is a large lak...

Satellite images acquired by ESA’s Envisat satellite have revealed the volcanic region of the Phlegrean Fields, located in southern Italy near the city of Naples, has entered a new uplift phase. Using Differential SAR Interferometry (DInSAR), scientists at the Institute for the Electroma...

Japan is preparing for a possible eruption of Mount Fuji 100 kilometres from Tokyo, after increased seismic activity in the area. The government was alerted to the possibility that Mount Fuji might erupt for the first time in nearly 300 years after detecting a rise in the incidence of moderate earth...

An expedition to the site of one of the largest volcanic eruption in modern times has uncovered a lost kingdom. More than 100,000 people died when Mount Tambora erupted on the Indonesian island of Sumbawa in 1815. Remains of a house with two occupants buried under ash have been unearthed for th...

Mexico’s Popocatépetl Volcano ushered in the new month with a moderate eruption on the morning of December 1, 2005. According to reports from the local monitoring station, an ash plume rose 5 kilometres above the summit and spread east-northeast, scattering a light ash fall onto nearby towns and c...

The Katmai National Park and Preserve is located in mainland Alaska where the Alaska Peninsula first begins to reach south-westward into the Bering Sea. Very little was known about this area, at least to European people, as recently as a hundred years ago, but on June 6, 1912, the region entered the r...

Japanese coast guard officials said Sunday they believe an underwater volcanic eruption has caused a 3,300-foot high column of steam to rise from the Pacific Ocean near Iwo Jima. The vap...

A volcano spewed ash and lava onto part of the ecologically delicate Galapagos Islands on Friday, threatening to kill vegetation and some animals on the island of Fernandina. The islands, of the coast of Ecuador, are considered one of the most important natural preserves in the world. "Evi...

The world's oldest volcano observatory has added satellites to its repertoire of instruments to monitor volcanic features flanking Naples. The result has been the most detailed view ever of ground motion in this vicinity. When it was founded back in 1841, the Vesuvius Observatory of Italy's Na...

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Unmanned vehicles will fly into the crater of an offshore volcano during the next three weeks to map it at high precision and search for possible mineral deposits. In a New Zealand-led mission that has parallels to planetary exploration, two state-of-the-art robotic underwater vehicles will be d...

A huge flow of hot mud pouring out of an exploratory oil well in Indonesia will be treated and channelled into the sea. Authorities have been struggling for more than two months to plug the leak near the well just south of Indonesia's second city of Surabaya. The noxious mud flow has displaced abou...

A search for survivors is under way after a volcano erupted on a Red Sea island near Yemen. The western part of the tiny al-Tair island, used as a military base, collapsed following the eruption, Yemen's defence ministry said. Coastguards and a Canadian frigate are searching for nine Yemeni soldier...

Indonesia late Tuesday raised the status of a volcano on Java island to the highest alert level and recommended people evacuate the area immediately. Officials have advised residents living within a 10-kilometre (6.2-mile) radius of Mount Kelut to leave, with the Indonesian volcanology and geo...

Mount Kelud is a volcano on the Indonesian island of Java, near the city of Yogyakarta. It erupts frequently, producing ashfalls and mudflows. The most recent eruption was in 1990. Activity is heightened there now and, fearing an eruption, authorities are preparing to evacuate thousands of peopl...

The 3,125-meter Llaima Stratovolcano in southern Chile has erupted, sending a huge plume of smoke into the air. There are no reports of damages or injuries. "The Llaima erupted at 18:20 (21:20 GMT) but we still don't know if it's a permanent or sporadic eruption. There is lava flowing toward...

[url=http://www.news.com.au/dailytelegraph/story/0,22049,23638788-5013605,00.html]Read

A volcano erupted Saturday with little warning on a remote island in Alaska, sending residents of a ranch fleeing from falling ash and volcanic rock. Okmok Caldera erupted hours after seismologists at the Alaska Volcano Observatory began detecting a series of tremors. The explosion flung an ash c...

A single olive branch may have solved one of ancient history's most enduring mysteries - when and why did the great Minoan civilisation of the Mediterranean come to a sudden end? The olive branch was buried alive during a cataclysmic volcanic eruption on the Aegean island of Thera - now known as S...

The Alaska Volcano Observatory has issued a red alert for planes flying near the Kasatochi volcano in the Aleutian islands after it erupted explosively on the 7th August sending an ash plume more than 35,000 feet into the air, and forcing two biologists from the U.S. Fish and Wildlife Service to evac...

A mud volcano erupted on an island in Manaung Township in Arakan twice on the night of 25 May, 2008, but there are no reports on any damaged caused by the eruption. Read more

Scientists have discovered a large volcano off the southwestern coast of Iceland, and they think that it may erupt at any time. The find is significant because scientists had previously thought that volcanoes could not form in that area of the ocean. Such large volcanoes are not located on oceani...

Turrialba Volcano, 40 kilometres east of San José, spewed gas and vapour two kilometres into the sky yesterday morning, its first eruption since 1866. People living near the foot of the volcano described a thick white column wafting up from the crater - The Volcanological and Seismological Observ...

Scientists are studying whether a submerged extinct volcano may sit to the south of Kauai, a would-be sister island to the Garden Isle that never emerged above the ocean. They're testing the theory by examining 363 volcanic rocks recently collected from the sea floor around Kauai, Niihau and Kaula...

A small eruption on Mount Ruapehu in central North Island, New Zealand last Wednesday night, 4th October, may have sent a water plume about 200 meters into the air, and created waves about six meters high in the volcanic lake. "It would have been a geyser-type eruption. It would have domed up w...

A volcano in northern Tanzania erupted on Friday, spewing small amounts of smoke and lava, the government spokesman said. Mt. Oldonyo Lengai, which is close to the border with Kenya, is believed to be the source of a series of shallow earthquakes experienced in the region over the past week, said Alf...

Pavlov Volcano, a 8,261-foot cone rising from the Alaska Peninsula southwest of Anchorage, blasted a plume sparkling with lightning almost four miles into the sky on Aug. 30, continuing an eruption that began in mid-August and could be building toward a colossal explosion. National Weather Serv...

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Kikai is a mostly submerged, 19-km-wide caldera near the northern end of the Ryukyu Islands south of Kyushu. Kikai was the source of one of the world's largest Holocene eruptions about 6300 years ago. Read more [url=http://farm1...

It's been nearly 20 years since Alaska's Mount Redoubt erupted, but that time of tranquillity might end. Recent seismic activity could be a prelude to an eruption, "perhaps within hours to days," said geologists from the Alaska Volcano Observatory. The 10,197-foot peak sits about 50 m...

Japan's Mt. Asama, in Tsumagoi, about 140 km northwest of Tokyo, erupted early Monday from its summit crater. The volcano spewed hot rocks and sent ash showers as far as Tokyo and its vicinity in the southern Kanto region, Japan. There was no major damage in the sparsely populated vicinity [url=htt...

Scientists Launch NSF Study of Sierra Negra An interdisciplinary team of scientists from the University of Miami (UM), University of Rochester, University of Idaho-Moscow and the Instituto Geofísico, Escuela Politécnica Nacional (Quito, Ecuador) have joined forces to study one the world's m...

Research presented in Greece at the July Atlantis 2005 conference and published in the August Geology points to a sunken island off the Strait of Gibraltar as the site of ancient Atlantis. Researcher Marc-Andre Gutscher combines new information on the bathymetry of Spartel Bank, in the...

'Rosetta Stone' of supervolcanoes discovered in Italian Alps Rare uplift reveals for the first time the deep plumbing of a supervolcano Scientists have found the "Rosetta Stone" of supervolcanoes, those giant pockmarks in the Earth's surface produced by rare and massive explosive e...

A volcano overlooking Taiwan's capital Taipei is still active, and not dormant as long thought, potentially threatening an area that is home to three million people, local media reported Monday. Datun Mountain, around an hour's drive from Taipei's city centre, could devastate the entire urban a...

Field guides of Portland and Oregon's "supervolcano" featured in new issue of Oregon Geology magazine. Read more (34mb, PDF)

21 May 2009 Magma pulses may reveal Earth's 'heartbeat' Evidence from Hawaii and Iceland has indicated that the Earth may literally have a heartbeat, in the sense that the planet's core may be dispatching simultaneous plumes of magma towards the surface every 15 million years or so. According to a r...

El Misti, also known as Guagua-Putina is a stratovolcano located in southern Peru near the city of Arequipa. With its seasonally snow-capped, symmetrical cone, El Misti stands at 5,822 metres above sea level and lies between the mountain Chachani (6,075 m) and the volcano Pichu-Pichu (5,669 m). I...

According to GNS, the Taupo volcano first began erupting about 300,000 years ago and it is a given that it will do so again one day. A repeat eruption of the size of either the Oruanui or Taupo eruptions would "devastate most of the North Island", according to GNS. Taupo is part of a belt of act...

Bali's Volcanic Mt Batur Put on Alert Status Bali's easily accessible Mt. Batur volcano has had its status raised from "normal" to "alert" (Waspada) due to elevated levels of hot gas emissions and increased seismic activity. [url=http://www.balidiscovery.com/message...

New research indicates that Mount Vesuvius' magma chamber is slowly travelling upwards, suggesting that the volcano may not be as hazardous as previously believed. Read more

A remote South Atlantic volcano, trapped under polar ice, is erupting in spectacular fashion. This is the first time that researchers have had a chance to watch an Antarctic lava flow in action. "I'd give my right arm to be down there now. It's very rare that we get to make direct observati...

Ecuador officials say a volcano is erupting in the Galapagos Islands and could harm unique wildlife. The Galapagos National Park says La Cumbre volcano began spewing lava, gas and smoke on uninhabited Fernandina Island on Saturday after four years of inactivity. [url=http://www.chron.com/di...

Uzon Caldera developed 40 thousand years ago on the site of a huge volcano destroyed by a set of bursting eruptions. The last cataclysm inside the Caldera (8,500 years ago) left its trace as a blasting crater about one kilometre in diameter. The following centuries of intensive hydro-thermal acti...

[url=http://colombiareports.com/colombia-news/news/7232-authorities-declare-yellow-a...

Volcano eruption covers villages in ash Nicaragua's Concepcion volcano has erupted, spewing gas and smoke almost 150 metres into the air and dumping ash on three nearby villages. Read more Latitud...

Geologists Find Buried Volcano Inside Panmure Basin Geologists have found a buried volcano inside Panmure Basin, which is the mouth of a volcano that erupted about 28,000 years ago. It is extremely rare for two eruptions to have occurred at the same site in the Auckland Volcanic Field. The discover...

Credit: Virtual Seismic Atlas [url=http://clasticdetritus.com/2008/10/12/sea-floor-sunday-32-mud-volcano-and-associated-m...

Spanish and French researchers have defined the age, location, size and geochemistry of the volcanoes of Gran Canaria during the Holocene, 11,000 years ago, in order to draw up a map of volcanic hazards for the island. The research shows that the area of greatest volcanic activity is one of the most h...

Laki or Lakagígar (Craters of Laki) is a volcanic fissure situated in the south of Iceland. On 8 June 1783, a fissure with 130 craters opened with phreatomagmatic explosions because of the groundwater interacting with the rising basalt magma. Over a few days the eruptions became less explosive, St...

This astronaut photograph of Cosiguina volcano was acquired on November 17, 2007, with a Kodak 760C digital camera using an 180 mm lens, and is provided by the ISS Crew Earth Observations experiment and the Image Science & Analysis Laboratory. On the southern boundary of the Gulf of Fonseca is a...

DNA recovered from ancient caribou bones reveals a possible link between several small unique caribou herds and a massive volcanic eruption that blanketed much of the Alaskan Yukon territory in a thick layer of ash 1,000 years ago. Tyler Kuhn, a Whitehorse native and Simon Fraser University gradu...

Mount Aniakchak is a 3,400 year old volcanic caldera (about 10 kilometres in diameter) located in the Aleutian Range of Alaska, United States. The area around the volcano is the Aniakchak National Monument and Preserve, maintained by the National Park Service. [url=http://en.wikipedia.org/w...

The Villarrica volcano in Pucon, Chile has been upgraded from green to amber alert following the 8.8 earthquake that occurred on Saturday morning. Read more Snow-covered Villarrica, one of Chile...

An eruption at Volcan Arenal, a volcano in north-central Costa Rica, caused small fires and avalanches on Tuesday and Wednesday this week. According to the Volcanological and Seismological Observatory of Costa Rica (OVSICORI) the volcanos emitted a stream of lava on its southern flank, causing...

Sulphur Mining at Ijen Volcano The Ijen volcano crater on Indonesia's Java island is one of the world's largest craters. Sulphur mining is a major industry in the region, made possible by an active vent at the edge of a lake, but the work is not without risks. Escaping volcanic gasses are channelled th...

Volcano eruption near the Eyjafjallajoekull glacier, Iceland Several hundred people have been evacuated from their homes, as a volcano erupted in southern Iceland. The volcano near the Eyjafjallajoekull glacier began to erupt shortly after midnight, leading to road closures in the area. It is...

The volcano at incredibly powerful Mount Katla in Iceland might yet blow its lid, according to scientists quoted in news reports today. Incredible fountains of orange and black lava have since Saturday been burning through the white surface of the Eyjafjallajokull glacier in the southern part of...

Undersea volcano threatens southern Italy Europe's largest undersea volcano could disintegrate and unleash a tsunami that would engulf southern Italy "at any time", a prominent vulcanologist warned in an interview published Monday. The Marsili volcano, which is bursting with mag...

Taal Volcano has no impending danger of erupting any time soon, the government volcanologists reported. Read more

Scientists Explore Origins of 'Supervolcanoes' on the Sea Floor "Supervolcanoes" have been blamed for multiple mass extinctions in Earth's history, but the cause of their massive eruptions is unknown. Despite their global impact, the eruptions' origin and triggering mechanisms h...

Impressive landmarks hidden for 40,000 years rise from sea-floor Some 700 feet deep in the waters off California's jewel of a coastal resort, Santa Barbara, sits a group of football-field-sized asphalt domes unlike any other underwater features known to exist. The deposits were discovered rece...

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Volcano spreads ash across western Guatemala An eruption at Guatemala's Santiaguito volcano has sent a plume of ash 8,300 metres above sea level, dusting parts of at least four provinces. Disaster response agency spokesman David De Leon says the volcano has calmed since Monday's big burst - thoug...

Whakaari/White Island is an active andesite stratovolcano, situated 48 km from the east coast of the North Island of New Zealand, in the Bay of Plenty. The nearest mainland towns are Whakatane and Tauranga. Read more Expan...

Guatemalas Pacaya volcano erupted on Thursday covering the capital with a cloud of black ash that closed the airport and forced evacuations of nearby villages. Read more Latitude: 14°22'51"N, Longitude: 90°36'04&qu...

Submarine volcano erupts south of Sarigan Gov. Benigno R. Fitial has declared a state of disaster emergency in the CNMI following the eruption of an active submarine volcano south of Sarigan Friday noon. Fitial declared the island of Sarigan as unsafe for human habitation and restricted all trave...

Scientists are warning airlines and tourists of the danger of ash and volcanic rocks erupting from Mt Yasur on Vanuatu's Tanna island. Wellingtons Volcanic Ash Advisory Centre has reported an ash cloud covering 100 nautical square miles and more than 1.8 kilometres high within the volcano's vici...

Gorely is a volcano located in the southern part of Kamchatka Peninsula, Russia. It consists of five overlapping stratovolcanoes and is one of the most active in southern Kamchatka. Gorely is a large, long-lived shield-type volcano that is currently in an eruptive phase. Prior eruptions occurr...

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Mountain Baekdu, a dormant volcano on the border between North Korea and China, is showing signs of a possible eruption in the near future, experts warned Tuesday. According to historical records, Baekdu was an active volcano. Major activity in the 1960s created a caldera on its peak, whose circum...

Scientists on a deep-sea expedition off Indonesia have discovered a towering volcano: It rises 3,000 metres from the ocean floor, yet remains far from sight at the water's surface. U.S. and Indonesian researchers, using a powerful sonar system and a robotic vehicle with high-definition video, a...

Mount Bandai is a stratovolcano in Fukushima Prefecture, Japan. In a major eruption on July 15, 1888 the north and east parts of the caldera collapsed in a massive landslide, forming two lakes, Hibara-ko and Onogawa-ko, as well as several minor lakes called Goshiki-numa, or the 'Five Coloured Lake...

A blob of the Earth's gooey insides linked to volcanic eruptions has been detected below southern Africa. The newly discovered blob is known to geologists as a mid-mantle plume. Mantle plumes are columns of hot, gushy gunk that flow toward the Earth's surface and are a known contributor to volcanic...

Laacher See or Laach Lake (in English) is a caldera lake in Rhineland-Palatinate, Germany, situated close to the cities of Koblenz, Mayen (11 km), and Andernach (14 km). It fills a volcanic caldera in the Eifel mountain range, the only caldera in Central Europe. It is part of the area of the "eas...

Mount Taranaki, or Mount Egmont, is an active but quiescent stratovolcano in the Taranaki region on the west coast of New Zealand's North Island. The mountain is more commonly referred to as Taranaki although it has the two official names under the alternative names policy of the New Zealand Geogra...

NIWA confirms collapse of undersea volcano The aptly named 'Rumble III' undersea volcano on the Kermadec Ridge, 200 km northeast of Auckland, has dropped in height by 120 metres in the last couple of years, pioneering research by NIWA has shown. [url=http://www.scoop.co.nz/stories/SC1008/S0...

Floodwater triggered by melted glacial ice is pouring from an Icelandic volcano, and scientists say it may be a precursor to an eruption. Read more The Grímsvötn lakes are lakes in Icel...

The discovery of an extinct underwater volcano 100 nautical miles off South Australia's Far West coast has excited scientists who came across it by chance. Scientists from the South Australian Research and Development Institute and university students were aboard CSIRO marine's RV Southern Su...

Elizabeth Johnson didn't know what she was going to do with herself when she moved to Harrisonburg two years ago to teach geology at JMU. She had just spent years studying volcanic activity in the Northwest, home to volcanoes like Mount Hood and Mount St. Helens. But there were no volcanoes in the Shen...

The team consisting of a combination of Indonesian geologists, U.S., and France find a giant volcano under the waters in west of Sumatra. The volcano has diameter 50 km and height of 4600 meters and located 330 km west of Bengkulu. Geologists are derived from the Agency for the Assessment and Applica...

Title: Is Tharsis Rise, Mars, a spreading volcano? Authors: Andrea Borgia A theoretical similarity derived for spreading volcanoes remains valid for over three orders of magnitude in size, from small slumping volcanoes to large ocean plates. This similarity means that Mount Etna, Sicily, can b...

4 of Colombia's volcanoes on yellow alert Colombia's Mount Machin and the snow-capped volcanoes Galeras, Huila, and Ruiz have been put on yellow alert after elevated activity, reports La Patria. Authorities recorded small earthquakes in the Tomila district late last week. The most significant...

Valles Caldera (or Jemez Caldera), is a 19 km wide volcanic caldera in the Jemez Mountains of northern New Mexico. Valles Caldera is one of the smaller volcanoes in the supervolcano class. The circular topographic rim of the caldera measures 19 kilometres in diameter. The El Cajete Pumice, Battle...

Erupting Kyushu volcano's outbursts get more serious A 1,421-meter-high volcano on the border between Kagoshima and Miyazaki prefectures erupted Tuesday for the fourth time since Jan. 26, spewing ash to a height of about 2,000 meters.Mount Shinmoe in the Kirishima range erupted at around 7:54 a...

Tucked in Tengchong county in the southern section of Hengduan Mountain in Yunnan Province, Tengchong volcano enjoys the fame of "natural museum of geology". It is the No.1 volcano in China by size, variety, fine preservation and compact distribution. [url=http://www.china.org.c...

A soft muddy island appeared a few kilometres offshore in Hingol on the Makran coast, Balochistan on November 16, 2010. The Director General, Geological Survey of Pakistan (GSP) dispatched a team of earth scientists to investigate the sudden appearance of this white mud dome, about three kilomet...

Cumbre Vieja (Spanish: Old Summit) is an active volcanic ridge on the volcanic ocean island of Isla de La Palma in the Canary Islands. This ridge trends in an approximate north-south direction and covers the southern third of the island. It is lined by several volcanic craters. [url=http://en.wik...

Mount Agung or Gunung Agung is a mountain in Bali, Indonesia. This stratovolcano is the highest point on the island. It dominates the surrounding area influencing the climate. On February 18, 1963, local residents heard loud explosions and saw clouds rising from the crater of Mount Agung. On Febru...

Climbers descend into the empty chamber of Iceland's Thrihnukagigur (aka. þrihnukahellir or Svartholid - The black hole) volcano. Read more Ed ~ þríhnúkagíg...

Mount Pelée (French: Montagne Pelée "Bald Mountain") is an active volcano at the northern end of the island and French overseas department of Martinique in the Lesser Antilles island arc of the Caribbean. It is among the deadliest stratovolcanoes on Earth. An eruption on the 8th May, 19...

A small eruption at Mount Aso on the 15th May, 2011, has produced a 500 meter ash cloud. The Japanese Meteorological Agency (JMA) has raised the alert status to Level 2 (Do not approach the crater) for the Volcano. Mount Aso is the largest acti...

Lassen Peak (also known as Mount Lassen) is the southernmost active volcano in the Cascade Range. Lassen Peak is the only volcano in the Cascades other than Mount St. Helens to erupt during the 20th century. On May 22, 1915, a powerful explosive eruption at Lassen Peak devastated nearby areas, and it...

Timanfaya National Park or Parque Nacional de Timanfaya is a Spanish national park covering the municipalities of southern portion of Tinajo and the northern portion of Yaiza in the southwestern part of the island of Lanzarote. The greatest recorded eruptions occurred between 1730 and 1736. Rea...

Volcan Parinacota Parinacota is a massive stratovolcano on the border of Chile and Bolivia. It is part of the Nevados de Payachata group of volcanoes. The other major edifice in th...

Nyamuragira (Derived from the Kinyarwanda verb 'Kuragira inka', meaning to herd cows; Inka means cow or cows) is an active volcano in the Virunga Mountains of the Democratic Republic of the Congo, situated about 25 km north of Lake Kivu. It is in the Province of Nord-Kivu. [url=http://en.wikipedi...

Newberry Volcano (with Newberry Caldera) is a large potentially active shield volcano located 40 miles (64 km) east of the Cascade Range and about 32 km southeast of Bend, Oregon. It is not a typical shield volcano. In addition to erupting basaltic lavas, it also has erupted andesitic and even rhyol...

Mount Hood is a huge draw for skiers, climbers and hikers. Volcano researchers, not so much. As volcanoes go, the mountain is monotonous. In Mount Hood's half-million-year history, it hasn't had the explosive, top-blowing eruptions of Mount St. Helens and others among its Northwest sisters. The...

Indonesia's Mount Gamalama volcano erupts showering nearby Ternate with ash Indonesia's Mount Gamalama volcano erupts showering nearby Ternate with ash from a cloud that stretched 1,000m above the peak. Report by Mark Morris.

A new type of volcanic eruption Scientists based in the UK and New Zealand have described a "new" type of volcanic eruption. Volcanic eruptions are commonly categorised as either explosive or effusive. But now, in research published this month in Nature Geoscience, researchers at Vic...

Mount Tarawera is the volcano responsible for New Zealand's largest historic eruption. Located 24 kilometres southeast of Rotorua in the North Island, it consists of a series of rhyolitic lava domes that were fissured down the middle by an explosive basaltic eruption in 1886, which killed an esti...

Ok (rhyming with 'talk') is a 1198 meters high dormant shield volcano with a central crater located to the west of Langjökull in the west of Iceland. In Icelandic Ok means load or yoke. The volcano erupted during interglacials in the Pleistocene (2,588,000 to 11,700 years ago). A late Pleistocene er...

Momotombo is a stratovolcano in Nicaragua, not far from the city of León. An eruption of the volcano in 1610 forced inhabitants of the Spanish city of León to relocate about 30 miles west. It also erupted in 1886, 1905, and most recently December 1, 2015. Read more Momotombo Volcano erupts in Nicaragu...

An active volcano on Indonesia's Lombok island has spewed lava and hot ash nearly 1,200 metres into the sky but poses no immediate threat to local villagers. Surono, director of Indonesia's Volcanology Agency, said the Tuesday eruption followed four smaller eruptions on Friday. [url=http://ww...

Mount Meager, originally known as Meager Mountain, is a volcanic massif in the Pacific Ranges of the Coast Mountains in southwestern British Columbia, Canada. Part of the Cascade Volcanic Arc of western North America, it is located 150 km north of Vancouver at the northern end of the Pemberton Vall...