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Note: The inclusion criteria for adding events are based on WikiProject Earthquakes' notability guideline that was developed for stand-alone articles. The principles described also apply to lists. In summary, only damaging, injurious, or deadly events and those of scientific interest should be recorded.
An earthquake occurred off the coast of the Alaska Peninsula on July 28, 2021, at 10:15 p.m. local time. [5] The large megathrust earthquake had a moment magnitude (M w) of 8.2 according to the United States Geological Survey (USGS). [6]
The region has experienced severe earthquakes in the past, including several megathrust earthquakes. The 1964 earthquake, with a magnitude of 9.2, was the largest earthquake in American history and the second largest to ever be recorded anywhere in the world. Though earthquakes are common in Alaska, they often occur out at sea. [9]
Seismologists are monitoring an earthquake swarm that is continuing to develop off Alaska's Aleutian Island chain and includes several stronger quakes.. According to the U.S. Geological Survey ...
A 7.2 magnitude earthquake triggered a brief tsunami advisory for southern Alaska late Saturday, but the advisory was canceled about an hour later, monitoring bodies reported. The earthquake was ...
A powerful earthquake occurred just south of the Alaska Peninsula Monday afternoon, local time, prompting tsunami warning for part of the coast. The earthquake was initially rated a magnitude 7.4 ...
The Alaska earthquake was a subduction zone (megathrust) earthquake, caused by an oceanic plate sinking under a continental plate. The fault responsible was the Aleutian Megathrust , a reverse fault caused by a compressional force.
Jul. 16—Update: This story has been updated with a new article: 7.2 earthquake off Alaska Peninsula triggers brief tsunami warning, sending some residents to higher ground Update, 12:55 a.m ...