U.S. Geological Survey Earthquake Hazards Program

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April 18, 2010 09:16:01 UTC

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April 18, 2010 09:16:29 UTC

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Our scientists study locations around the world. Learn about research conducted in our regional offices, regional seismic network monitoring, and local activities of interest.

Today’s Earthquake Fact

The average rate of motion across the San Andreas Fault Zone during the past 3 million years is 56 mm/year (2 inches/year). This is about the same rate at which your fingernails grow. Assuming this rate continues, scientists project that Los Angeles and San Francisco will be adjacent to one another in approximately 15 million years.

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