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The Puente Hills Fault (also known as the Puente Hills Thrust Fault System) is an active geological fault that is located in the Los Angeles Basin in California. The thrust fault was discovered in 1999 and runs about 40 km (25 mi) in three discrete sections from the Puente Hills region in the southeast to just south of Griffith Park in the ...
The Puente Hills thrust fault is the same overall fault network that produced the Whittier Narrows – which measured a 5.9 magnitude, killed eight people and caused some $358 million in damage in ...
The Puente Hills thrust fault system is in a broad zone directly underneath the densest parts of the L.A. area, including downtown Los Angeles, which has many old and unretrofitted buildings, as ...
The La Habra earthquake was caused by oblique thrust faulting on the Coyote Hills segment of the Puente Hills Thrust Fault System. [1] [3] The Puente Hills Fault is a blind thrust fault that runs north and west from Orange County to Los Angeles. It was the fault that was responsible for the 5.9 M w 1987 Whittier Narrows earthquake on October 1 ...
[3] [4] A NASA study which combined satellite radar images and Global Positioning System (GPS) observations found that "tectonic squeezing across Los Angeles" "will likely produce earthquakes on either the blind Elysian Park or Puente Hills thrust fault systems". [5] A blind thrust earthquake along the Puente Hills fault could contribute more ...
A magnitude 7.5 quake in the Puente Hills thrust fault system — which runs under highly populated areas of L.A. and Orange counties — could kill 3,000 to 18,000 people, according to the U.S ...
Beginning with the 1983 Coalinga earthquake, a blind thrust event in the central coast ranges of California, a change in perspective was brought about regarding these types of (concealed) faults. The October 1987 shock occurred on a previously unrecognized blind thrust fault that is now known as the Puente Hills thrust system.
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 Range