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Probabilistic seismic hazard map. 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 ...
1979 Imperial Valley earthquake – magnitude 6.4 earthquake with an epicenter less than 1 km inside Mexico – significant damage and injuries on both sides of the border (60 in the US) 2010 Baja California earthquake (Mexico near S California) – magnitude 7.2 earthquake, 4 fatalities and 100 injuries, none in the United States
UTC time: 1940-05-19 04:36:47: ISC event: 901341: USGS-ANSSComCat: Local date: May 18, 1940 (): Local time: 21:35 PST: Magnitude: 6.9 M w [1]: Depth: 16 km (9.9 mi) [1] Epicenter: 1]: Type: Strike-slip: Areas affected: United States, Mexico: Total damage: $6 million [2]: Max. intensity: MMI X (Extreme) [1]: Casualties: 9 dead [2] 20 injured [3]: The 1940 El Centro earthquake (or 1940 Imperial ...
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
A 7.0 magnitude earthquake was reported off the coast of Northern California on Thursday, according to the United States Geological Survey. The epicenter of the "strong" quake was off the coast ...
In 1940, El Centro experienced a 7.1 earthquake, [11] and population growth accelerated through the 1940s. [12] By the mid-1940s, El Centro had become the second largest city in the Imperial Valley, with a population of about 11,000 people. El Centro had also become the location of the Imperial Irrigation District (IID) administrative offices. [9]
A map of the faults that run through Stanislaus County. No active faults are currently known to exist within the valley portion of the county, ... All of California is at high risk for earthquakes.
The 1915 Imperial Valley earthquakes were two destructive shocks centered near El Centro, California on June 22. The earthquakes measured M s 6.25 and occurred nearly one hour apart at 19:59 and 20:57 PST. Both shocks were assigned VIII (Severe) on the Modified Mercalli intensity scale. Heavy damage occurred in the areas of Mexicali and El ...