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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 ...
The 1927 Lompoc earthquake occurred on November 4 at 05:49 PST with an epicenter off the coast of Santa Barbara County in Southern California. [1] The earthquake measured 7.0 on the moment magnitude scale and had a maximum Modified Mercalli intensity of IX (Violent). There is debate among seismologists on whether or not the earthquake was ...
Earthquakes of magnitude 8.0 and greater from 1900 to 2018. The apparent 3D volumes of the bubbles are linearly proportional to their respective fatalities. [1] This list of 20th-century earthquakes is a list of earthquakes of magnitude 6 and above that occurred in the 20th century. Sone smaller events which nevertheless had a significant ...
The 1925 Santa Barbara earthquake hit the area of Santa Barbara, California on June 29, with a moment magnitude between 6.5 [1] and 6.8 [3] and a maximum Mercalli Intensity of IX (Violent). It resulted in 13 deaths and destroyed the historic center of the city, with damage estimated at $8 million (about $111 million in 2017).
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The 1920 Haiyuan earthquake was one of the deadliest events of the 20th century. Over 200,000 deaths were caused in the region. Based on a list of cities affected there was at least 242,029 people killed. Property damage was around $25 million (1920 rate). Parts of the regional terrain were affected with uplift or slumping. 242,029: 17 [44]
The fault was first identified after a magnitude 4.9 earthquake struck near Inglewood, California on June 21, 1920. [3] Due to the lack of earthquake-resistant construction in southern California at this time, this quake caused considerable damage in the Inglewood area and was a preview of what was to come almost 13 years later.
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.