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The 2021 Haiti earthquake was the largest to strike the country since the 1842 Cap-Haïtien earthquake. More than 138,000 buildings were damaged or destroyed, most of them in Les Cayes and Nippes. 2,248 people were killed, 12,763 others were injured and 329 people remained missing. It is the deadliest earthquake of 2021. [338] 2,248 12,763 16 [339]
see 2021 East Java earthquake-8.562 112.519 10 6.0 M w (USGS) Centred 44km SSW of Gongdanglegi Kulon, Indonesia, at a depth of 82.3km. [14] April 28, 2021 02:21 Assam, India see 2021 Assam earthquake: 26.782 92.436 2 6.0 M w (USGS) Centred 9km NNW of Dhekiajuli, India, at a depth of 34.0km. [15] May 21, 2021 13:48 Yunnan, China see 2021 Dali ...
The earthquake ruptured an area of about 120 mi × 60 mi (193 km × 97 km), equal to about 7,200 sq mi (19,000 km 2). The estimated maximum slip along this fault surface was about 3 to 4 m (9.8 to 13.1 ft). [30] The earthquake appears to have only partially ruptured the Shumagin segment of the subduction zone, at 75%.
2021 Chignik earthquake § October 2020 [33] July 29, 2021: Alaska 8.2 M w 0 2021 Chignik earthquake [34] December 20, 2022: California 6.4 M w: 2 2022 Ferndale earthquake [35] April 5, 2024: New Jersey 4.8 M w: 0 2024 New Jersey earthquake [36] December 5, 2024: California 7.0 M w: 0 2024 Cape Mendocino earthquake [37]
The 2021 South Sandwich Islands earthquakes were a pair of powerful earthquakes, followed by many strong aftershocks which struck along the South Sandwich Trench in August 2021. The quakes measured 7.5 and 8.1 on the moment magnitude scale, according to the United States Geological Survey.
The most recent similar-sized comparable to the 2021 quake was the 6.9 M w 2016 Fukushima earthquake, which occurred just southwest of where the February 2021 earthquake struck. That earthquake was the result of normal faulting within the overriding Okhotsk Sea Plate at a depth of 9 km (5.6 mi). [ 22 ]
The earthquake occurred at a relatively shallow depth, only 20 kilometres (12 mi) below the surface, which would have amplified the shaking effect. [7] Earthquakes of this size according to the U.S. Geological Survey are 40 km × 20 km (25 mi × 12 mi) in rupture size. [1] The earthquake occurred at the southern extent of the Guerrero Gap.
The Loyalty Islands region is very active seismically, and the region within 250 km of the 2021 earthquake has hosted 15 other M 7+ earthquakes over the preceding century. The largest prior event was a M 7.7 earthquake on May 16, 1995, [ 5 ] which was located about 165 km west of the 2021 event, and to the southwest of the oceanic trench in the ...