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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 ...
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]
“Drop, Cover, Hold on. Protect yourself,” the U.S. Geological Survey warned moment before the eathquake struck.
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 color-coded map shows a range of earthquake probability across the U.S. Well known high-risk areas, such as California and Alaska, are coded in dark red, denoting the highest risk.
University of California logo Damage from the Great San Francisco earthquake, in Haywards area 1884 Convent of Our Lady of the Sacred Heart • An earthquake estimated at 6.3–6.7 on the moment magnitude scale hits the Bay Area, with an epicenter in the East Bay. It causes significant damage throughout the region, and comes to be known as the ...
1898 Mare Island earthquake; 1899 San Jacinto earthquake; 1906 San Francisco earthquake; 1915 Imperial Valley earthquakes; 1918 San Jacinto earthquake; 1925 Santa Barbara earthquake; 1927 Lompoc earthquake; 1932 Eureka earthquake; 1933 Long Beach earthquake; 1940 El Centro earthquake; 1948 Desert Hot Springs earthquake; 1952 Kern County ...