San Francisco Earthquake 1906

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San Francisco earthquake of 1906

In 1906 devastation in engulfed all of San Francisco, California. As the 60 second earthquake ended a new disaster was just beginning. Soon after a terrible fire broke out across the city causing thousands of buildings to be destroyed. An earthquake is shaking that results from the movement of rock beneath earths surface. Most earthquakes occur at plates boundaries because that is where most movement occurs. The focus of an earthquake is a point beneath The surface in which the earthquake actually occurs. The epicenter of an earthquake is the point on the surface directly above the focus, where most damage happens. Also surface waves are what cause the most damage. A seismograph is what is used to measure