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Following the earthquake were more than 10 aftershocks greater or equal to magnitude 4.0. The strongest aftershock was a M w 5.3 occurring the day later. [3] The strongest aftershock had a maximum intensity of VIII (Severe), collapsing several already damaged but unoccupied homes. [21] [22] A total of 2,000 aftershocks were recorded. [17]
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: IV (Light) 10.0 February 10: 2021 Loyalty Islands earthquake: 5 7.5 12 Peru, Loreto: VIII ...
In seismology, an aftershock is a smaller earthquake that follows a larger earthquake, in the same area of the main shock, caused as the displaced crust adjusts to the effects of the main shock. Large earthquakes can have hundreds to thousands of instrumentally detectable aftershocks, which steadily decrease in magnitude and frequency according ...
A 4.0 magnitude aftershock hit 37 miles west New York City in New Jersey around 6 p.m. Friday. According to the United States Geological Survey it was felt as far away as Long Island, where there ...
An agricultural community in Imperial County experienced a 4.8 earthquake and more than 180 smaller aftershocks. A midnight 4.8 earthquake followed by a cluster of aftershocks rocks the El Centro area
Map showing epicenters of M≥5 earthquakes up to February 4, 2020, in the 2019–2020 Puerto Rico swarm sequence of earthquakes. The region has been seismically active since ancient times. The Great Northern and Great Southern fault zones that cross the main island of Puerto Rico laterally have been active since the Eocene epoch.
Magnitude-7 earthquakes in populated areas are uncommon but devastating: In August 2021, a magnitude-7.2 quake in Haiti killed more than 2,100 people. A magnitude-5.8 aftershock followed.
The 2021 Maduo earthquake, also known as the 5.22 earthquake struck Madoi County in Qinghai Province, China, on 22 May at 02:04 local time. [8] The earthquake had a moment magnitude and surface-wave magnitude of 7.4.