* Astronomy

The 1707 Hoei earthquake, which occurred at 14:00 local time on October 28, 1707, was the largest in Japanese history until the 2011 Tohoku earthquake surpassed it. It caused moderate to severe damage throughout southwestern Honshu, Shikoku and southeastern Kysh. The earthquake and the resulting destructive tsunami, caused more than 5,000 casualties. This event ruptured all of the segments of the Nankai megathrust simultaneously, the only earthquake known to have done this, with an estimated magnitude of 8.6 ML. It may also have triggered the last eruption of Mount Fuji some 49 days later.
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