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The 1978 Santa Barbara earthquake (also known as the Goleta earthquake), occurred on August 13, 1978, 3:54 p.m. with its epicenter beneath the Santa Barbara Channel. [4] [5] The magnitude of the earthquake was estimated at M L 5.1 according to the Southern California Seismic Network; however, it may have been as high as 5.6 M w. [1]
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).
Toppozada and others in 1981 proposed a location 10–20 km (6.2–12.4 mi) southwest of the 1925 Santa Barbara earthquake. Details of a possible tsunami would suggest a thrust-mechanism for the earthquake; similar to the 1978 Santa Barbara earthquake (>M5) which had a left-lateral and north-dipping thrust mechanism. [6]
Having half a dozen earthquakes with a magnitude 2.5 or greater strike in a single week is not a common occurrence in Southern California.
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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 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.
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 ...