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The earliest known earthquake in the U.S. state of California was documented in 1769 by the Spanish explorers and Catholic missionaries of the Portolá expedition as they traveled northward from San Diego along the Santa Ana River near the present site of Los Angeles. Ship captains and other explorers also documented earthquakes.
Historical earthquakes is a list of significant earthquakes known to have occurred prior to the early 20th century. As the events listed here occurred before routine instrumental recordings — later followed by seismotomography imaging technique, [1] observations using space satellites from outer space, [2] artificial intelligence (AI)-based earthquake warning systems [3] — they rely mainly ...
Large earthquakes also occurred near the junction in northern California in previous Decembers, according to the geological survey. There were two, a 6.1 and 6.0, near Petrolia in 2021 and a 6.4 ...
Another sequence of earthquakes hit exactly a year earlier, topping out with a magnitude 6.2 earthquake on Dec. 20, 2021. The last earthquake larger than Thursday’s temblor to strike directly ...
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]
A full fault rupture, estimated to be around a 7.5 magnitude, could kill between 3,000 and 18,000 people, according to US Geological Survey and Southern California Earthquake Center.
The 2021 Antelope Valley earthquake occurred in a rural area near the California–Nevada border. Due to the remoteness of the area, there were few sensor stations near the earthquake and this resulted in the M W 6.0 earthquake incorrectly being split into "phantom quakes" by the system – a M W 4.8 near Lee Vining , M W 4.8 near Stockton ...
Southern California's last "Big One" was in 1857, when an earthquake with a magnitude of roughly 7.9 ruptured 225 miles of fault on the San Andreas, between Monterey and San Bernardino counties.