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"The 29 July 2021 Mw 8.2 Chignik, Alaska Peninsula Earthquake Rupture Inferred from Seismic and Geodetic Observations: Re-rupture of the Western 2/3 of the 1938 Rupture Zone". Geophysical Research Letters. 49 (4). American Geophysical Union (published February 28, 2022). Bibcode:2022GeoRL..4996004L. doi: 10.1029/2021GL096004. S2CID 246885311.
The strongest earthquake known to have originated from it was a M7.1 that occurred on July 22, 1937. Other large earthquakes include a M4.9 in 2021, and M5.3 in 2024. [2] The 1937 earthquake likely ruptured the entire length of the fault while the 2024 earthquake was observed as originating from a depth of only 7.2 km (4.5 mi).
Printable version; In other projects ... Pages in category "Earthquakes in Alaska" ... 2021 Chignik earthquake; A.
The color-coded map shows a range of earthquake probability across the U.S. Well known high-risk areas, such as California and Alaska, are coded in dark red, denoting the highest risk.
8.2 M w – 8.5 M s: 7] 1585-06-11: 9.25 M w: Aleutian Islands: Unknown: Natives killed by a tsunami in Hawaii. 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.
The earthquake was initially rated a magnitude 7.4 but was upgraded to a magnitude 7.5 with a depth of 40.1 km (25 miles), according to the USGS. The epicenter was approximately 575 miles ...
The quake occurred at a depth of 9.3km and felt widely throughout the Alaskan Peninsula
32.2 July 29: 2021 Chignik earthquake: 2 8.1 0 New Zealand, Kermadec Islands offshore VIII (Severe) 26.5 March 4: 2021 Kermadec Islands earthquakes: 2 8.1 0 South Georgia and the South Sandwich Islands offshore VII (Very strong) 22.8 August 12: 2021 South Sandwich Islands earthquakes: 4 7.7 0 New Caledonia offshore, southeast of the Loyalty Islands