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A map shows earthquakes above magnitude 2.5 that struck in the last week in Southern California. Quakes marked in orange occurred over a 24-hour period ending at 9 a.m. Monday, while those in ...
A string of earthquakes shook just south of the border Sunday and early Monday, with the largest measured at 4.9, according to the U.S. Geological Survey.
[1] [2] Since the three damaging earthquakes that occurred in the American Midwest and the United States East Coast (1755 Cape Ann, 1811–1812 New Madrid, 1886 Charleston) were well known, it became apparent to settlers that the earthquake hazard was different in California.
Mexico lies within two seismically active earthquake zones. The Baja California peninsula lies near the boundary of the Pacific plate and the North American plate, while southern Mexico lies just north of the boundary between the North American plate and the Cocos and Rivera tectonic plates. The Cocos plate is subducting under the North ...
The Imperial fault was the source of the 1940 El Centro earthquake and the 1979 Imperial Valley earthquake. There was more than 30 km (19 mi) of surface rupture associated with the 1979 event along the northwest trending Imperial fault from just north of the Mexico–United States border to an area south of Brawley and the BSZ was found to have ...
On June 2, a magnitude 3.4 earthquake was felt widely across Los Angeles and the San Gabriel and San Fernando valleys. Then, in almost the exact same location, a magnitude 4.4 earthquake hit on ...
The earthquake measured 7.2 on the moment magnitude scale that started 25 kilometers (16 mi) south of Guadalupe Victoria, Baja California, at a depth of 10 km (6.2 mi). [14] It occurred at 22:40 UTC (1540 local time ) on Easter Sunday, April 4, 2010, and it is said to have lasted about a minute and 29 seconds. [ 3 ]
On Friday, at 10:26 a.m., a magnitude 3.6 earthquake — down from an original estimate of 3.8 — occurred with an epicenter just north of the Ojai Valley, causing weak shaking to be felt from ...