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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.
Printable version; In other projects ... Pages in category "Earthquakes in Alaska" ... 2021 Chignik earthquake; A.
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 ...
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 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).
A 7.8 magnitude earthquake struck the region in July 2020, followed by an 8.2 magnitude quake in July 2021, according to the earthquake center based at the University of Alaska Fairbanks.
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