The Fault Of The San Andreas Fault System

1711 Words May 8th, 2016 7 Pages
In the fall of 1989 on the seventeenth day of October at 5:04pm Pacific time, there was a fateful earthquake that claimed sixty three lives, created almost four thousand reported casualties and caused more than six billion in damages destroying many homes and businesses throughout the state of California. The epicenter of the earthquake originated in the Loma Prieta Mountains just outside of Santa Cruz, California. The fault that the earthquake occurred on is the San Andreas Fault system. Which has spider webs spanning approximately forty miles wide and runs north-west and south-east for over eight-hundred miles through California. This fault line forms the boundary of the Pacific plate and the North American Plate. The San Andreas Fault is a right- lateral, strike-slip type fault. A strike-slip fault occurs when one plate boundary is moving relatively in a parallel direction in reference to another plate boundary. This is opposed to other fault plate boundaries that can move towards one another such as the compressional fault lines or otherwise spreading apart such as the tensional type fault lines. Both of which have sub categories which further classify and describe the forces and features of the fault. The San Andreas right-lateral, strike-slip fault is identified by when an observer stands on one side of the moving fault looking across at the other side of the fault. Hypothetically imagine there was a line drawn across the fault line before it moved. Now…
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