* Astronomy

Members Login
Post Info TOPIC: Sumatra Quake


L

Posts: 131433
Date:
2012 Indian Ocean earthquakes
Permalink  
 


The 2012 Indian Ocean earthquakes were magnitude 8.6 and 8.2 Mw undersea earthquakes that struck near the Indonesian province of Aceh on Wednesday, April 11, 2012, at 15:38 local time.
Read more



__________________


L

Posts: 131433
Date:
RE: Sumatra Quake
Permalink  
 


Big Quake was Part Crustal Plate Breakup

Seismologists have known for years that the Indo-Australian plate of Earth's crust is slowly breaking apart, but they saw it in action last April when at least four faults broke in a magnitude-8.7 earthquake that may be the largest of its type ever recorded.
The great Indian Ocean quake of April 11, 2012 previously was reported as 8.6 magnitude, and the new estimate means the quake was 40 percent larger than had been believed, scientists from the University of Utah and University of California, Santa Cruz, report in the Sept. 27 issue of the journal Nature.

Read more



__________________


L

Posts: 131433
Date:
April 11, 2012 Sumatra Strike-slip quake
Permalink  
 


Largest quake of its kind ever recorded

Possibly the largest earthquake of its kind has been recorded in the Indian Ocean, say seismologists.
At least four faults in the Indo-Australian plate caused a magnitude-8.7 earthquake in April, say experts from the University of Utah and University of California, Santa Cruz.
The quake was previously believed to be of 8.6 magnitude, 40% smaller than the latest estimate, the scientists have reported in the Nature journal.

Read more



__________________


L

Posts: 131433
Date:
2012 Sumatra earthquake
Permalink  
 


Caltech researchers provide highest-resolution observations yet of the complex 2012 Sumatra earthquake

The powerful magnitude-8.6 earthquake that shook Sumatra on April 11, 2012, was a seismic standout for many reasons, not the least of which is that it was larger than scientists thought an earthquake of its type - an intraplate strike-slip quake - could ever be. Now, as Caltech researchers report on their findings from the first high-resolution observations of the underwater temblor, they point out that the earthquake was also unusually complex - rupturing along multiple faults that lie at nearly right angles to one another, as though racing through a maze.
Read more



__________________


L

Posts: 131433
Date:
RE: Sumatra Quake
Permalink  
 


Recent Indonesia Quake Added Pressure to Key Fault

Seismologists say last week's powerful earthquake off western Indonesia increased pressure on the source of the devastating 2004 tsunami: a fault that could unleash another monster wave sometime in the next few decades.
Read more



__________________


L

Posts: 131433
Date:
Permalink  
 

A strong magnitude 6.2 earthquake occurred at 05:57:38 (UTC) on Sunday, April 15, 2012, off the west coast of the Sumatra region, 651 km WSW of Banda Aceh, at a Depth of 15.2 km.

Location 2.549N, 90.277E



__________________


L

Posts: 131433
Date:
Permalink  
 

The massive earthquake off Indonesia surprised scientists: Usually this type of jolt isn't this powerful.

Wednesday's magnitude-8.6 occurred along a strike-slip fault line similar to California's San Andreas Fault. Scientists say it's rare for strike-slip quakes, in which blocks of rocks slide horizontally past each other, to be this large.
Read more



__________________


L

Posts: 131433
Date:
Permalink  
 

Aceh earthquakes trigger Indian Ocean tsunami alert

An Indian Ocean tsunami alert is in place after two huge quakes off the coast of Indonesia's Aceh province.
See more



__________________


L

Posts: 131433
Date:
Permalink  
 

A great magnitude 8.2 earthquake occurred at 10:43:09 (UTC) on Wednesday, April 11, 2012, off the west coast of the Sumatra region, 615 km SSW from Banda Aceh, at a Depth of 16.4 km.

Location 0.773N, 92.452E



__________________


L

Posts: 131433
Date:
Permalink  
 

A great magnitude 8.7 earthquake occurred at 08:38:37 (UTC) on Wednesday, April 11, 2012, off the west coast of the Sumatra region, 434 km SW of Banda Aceh, at a Depth of 22.9 km.

Location 2.311N, 93.063E

An earthquake with an initial magnitude of 8.9 has struck under the sea off Indonesia's northern Aceh province.
The quake triggered a tsunami warning across the Indian Ocean region.
The Pacific Tsunami Warning Center said it was not yet known whether a tsunami had been generated, but advised authorities to "take appropriate action".

Read more



__________________
1 2 36  >  Last»  | Page of 6  sorted by
Quick Reply

Please log in to post quick replies.



Create your own FREE Forum
Report Abuse
Powered by ActiveBoard