Many smaller faults branch from and join the San Andreas fault zone.
Viewed in detail, the fault is a complex zone of crushed and broken rock from a few hundred feet to a mile wide. The entire San Andreas fault system is more than 800 miles long and extends to depths of at least 10 miles within the Earth. The San Andreas is the "master" fault of an intricate fault network that cuts through rocks of the California coastal region. Wallace, USGS.)The Pacific Plate (on the west) moves northwestward relative to the North American Plate (on the east), causing earthquakes along the fault.
This earthquake, however, was but one of many that have resulted from episodic displacement along the fault throughout its life of about 15-20 million years.Īerial view of the San Andreas fault slicing through the Carrizo Plain in the Temblor Range east of the city of San Luis Obispo. Several transform fault boundaries are involved.Ī sudden displacement along the fault on Approduced the great San Francisco earthquake and fire. The San Andreas fault is part of a complex structure of plate boundaries associated with the west coast of the United States. residents, the most famous example is the San Andreas fault in California. Neither production nor consumption of lithosphere occurs at these boundaries. Tectonic plates grind past each other at transform fault boundaries. Transform Fault Boundaries Between Plates Transform Fault Boundaries Between Plates
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