EARTH SCIENCE
NATURAL HAZARDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The California Fault runs through California.
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The volcanoes in California erupt causing earthquakes.
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The tsunamis from the coast of California cause earthquakes.
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The San Andreas Fault runs through California.
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Detailed explanation-1: -The Pacific Plate (on the west) moves northwestward relative to the North American Plate (on the east), causing earthquakes along the fault.
Detailed explanation-2: -The Pacific Plate (on the west) slides horizontally northwestward relative to the North American Plate (on the east), causing earthquakes along the San Andreas and associated faults.
Detailed explanation-3: -Tremors along a notorious segment of California’s San Andreas Fault appear to be driven by thermal instability caused by frictional shear happening much deeper in the Earth than scientists thought, according to new University of Southern California research that helps explain how quakes happen.
Detailed explanation-4: -More Earthquakes in the West The western United States lies along the boundaries of major tectonic plates that make up the Earth’s crust-the North American Plate and the ocean plates to the west. These plates are moving against each other, breaking up the crust along many faults like the San Andreas Fault.
Detailed explanation-5: -San Diego, Los Angeles and Big Sur are on the Pacific Plate of the San Andreas fault. San Francisco, Sacramento and the Sierra Nevada are on the North American Plate. This sliding boundary between the plates is what causes major earthquakes.