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The Northridge earthquake was caused by dip slip on a thrust fault—the overriding movement of one crustal block up and over a second crustal block (see p. The Northridge earthquake occurred on a blind thrust fault—a buried thrust fault that does not extend to the surface.
People also ask, what fault line was the Northridge earthquake on?
It occurred on a previously undiscovered fault, now named the Northridge blind thrust fault (also known as the Pico thrust fault). Several other faults experienced minor rupture during the main shock and other ruptures occurred during large aftershocks, or triggered events.
Also to know is, was the Northridge earthquake on the San Andreas Fault?
The initial Northridge quake shook with a staggering Richter magnitude of 6.9, and lasted for more than 20 seconds. The earthquake occurred along a "blind" thrust fault, close to the San Andreas fault. The outcome resulted in one of the most financially destructive natural disasters in American history.
17, 1994, a hidden fault lurking under the city's San Fernando Valley neighborhoods unleashed a magnitude 6.7 earthquake that shattered buildings, broke water mains and ignited fires. The widespread damage to buildings, freeways and infrastructure made the Northridge quake the costliest U.S. disaster at the time.