Geological Hazards and Their Impact_McGeary_Date_022610

Geological Hazards and Their Impact_McGeary_Date_022610 -...

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05/03/2010 12:28:00 Earthquakes - faults cause earthquake - focus initial point of rupture along the fault surface below the earth, epicenter the point on the earths surface directly above the focus - friction keeps the fault from breaking - Elastic Rebound Theory - over time, stresses build up in the rocks from forces and warp and/or bend the rock across a fault- when fault ruptures the rocks snap back to original un-
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Unformatted text preview: warped shape, except where broken, and releases energy. And earthquake occurs when the stress is released suddenly ←- motion of a normal fault is mostly vertical, at an angle ← ← 05/03/2010 12:28:00 ← 05/03/2010 12:28:00 ←...
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Geological Hazards and Their Impact_McGeary_Date_022610 -...

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