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The 1857 Fort Tejon earthquake occurred at about 8:20 a.m. (Pacific time) on January 9 in central and Southern California.One of the largest recorded earthquakes in the United States, [6] with an estimated moment magnitude of 7.9, it ruptured the southern part of the San Andreas Fault for a length of about 225 miles (350 km), between Parkfield and Wrightwood.
Early studies indicated the earthquake was on the Newport-Inglewood fault, but a later study in 2002 indicated the San Andreas fault was the cause. Other faults have been suggested, but the San Andreas fault is considered the most likely fault. Around 40 people died, and the magnitude ranged from 6.9-7.5. [32]
Simplified fault map of southern California The faults of Southern California viewed to the southeast, as modeled by the Southern California Earthquake Center. Highlighted in purple are the San Andreas Fault (left) and Santa Monica Bay complex (right). The foreground is in the Santa Barbara Channel, the east-trending zone marks the Transverse ...
This section of the San Andreas, located near the tiny central Californian town of Parkfield, last shook back in 2004. ... 9 earthquake. The fault line absolutely devastated San Francisco back in ...
The last big earthquake in this area on the San Andreas caused one part of the fault to move past the other by 12 to 14 feet, making it a likely magnitude 7.3 or 7.4 earthquake.
The southern section of California’s San Andreas fault hasn’t experienced a major earthquake in 300 years, and is around a century overdo for a “big one.”
The San Andreas fault runs through this town, and six successive magnitude 6 earthquakes occurred on the fault at unusually regular intervals, between 12 and 32 years apart (with an average of every 22 years), between 1857 and 1966. [1] The latest major earthquake in the region struck on September 28, 2004.
The great earthquake of 1857, which became known as the Fort Tejon earthquake, was centered nearly 100 miles away. The earthquake became associated with the fort by name because the area near the epicenter was sparsely populated. The most reliable report of the event was issued from the fort, nearly 93 miles (149.7 km) distant.