M9.2 earthquake in the United States, 28 March 1964

On 28 March 1964 at 03:36 UTC an earthquake of magnitude 9.2 struck in the United States, 25 km deep. 139 people died. It set off a tsunami. In the next 30 days 14 aftershocks of magnitude 5 or more followed within 100 km, the strongest 6.4.