Geology notes novermber 7 for exam 3

Geology notes novermber 7 for exam 3 - One of the most...

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Geology Now more water is allocated than normally flows down the river -Everyone takes some water from the Colorado River as it flows along The Colorado River is completely used up by the time it reaches its delta on the Gulf of California. Recent drought is causing much concern -Las Vegas gets more than 90% of its water from the Colorado River Las Vegas gets its water from Lake Powell and water levels in Lake Powell are more than 100 ft. below the spillway. Earthquakes are ground shaking caused by seismic waves -Seismic waves are the energy released as rocks snap back to their preferred shape after a break occurs. -Earthquakes are more common at plate boundaries but can occur nearly anywhere
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Unformatted text preview: One of the most famous earthquakes in US history is-The San Francisco earthquake (Richter magnitude of 7.8) of 1906 struck at 5:12 A.M. on Weds. April 18th .-The earthquake and resulting fire is estimated to have killed more than 3000 people-Most victims burned to death while trapped in collapsed buildings-The quake was caused by a rupture on the San Andreas Fault (a transform fault) that runs from the Gulf of California to San Francisco The San Andreas Fault is a transform fault that connects the east Pacific rise and the Juan de Fuca Ridge...
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