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Epicenter of 1906 San Francisco Earthquake

Epicenter of 1906 San Francisco Earthquake American History STEM Geography Disasters

The epicenter of a massive earthquake - which unexpectedly rocked San Francisco on the 18th of April, 1906 - occurred just offshore.  The U.S. Geological Survey provides the details:

Origin Time and Epicenter

At 5:12 AM local time, on April 18, 1906, a foreshock occurred with sufficient force to be felt widely throughout the San Francisco Bay area.

The great earthquake broke loose some 20 to 25 seconds later, with an epicenter in the Pacific Ocean just 2 miles west of San Francisco.

Within 30 seconds of the start of the main rupture, very strong shaking had swept throughout the entire San Francisco Bay Area, and lasted some 45 to 60 seconds.

This image, from the USGS, depicts the epicenter's approximate location.


Media Credits

Image online, courtesy USGS.  PD

 

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"Epicenter of 1906 San Francisco Earthquake" AwesomeStories.com. Jul 12, 2014. Oct 18, 2017.
       <https://www.awesomestories.com/asset/view/Epicenter-of-1906-San-Francisco-Earthquake/1>.
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