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Unformatted text preview: Wasatch mountains (horst) are the eastern part of the Basin and Range, so Salt Lake City is on the hangingwall of the Wasatch fault The Wasatch fault is the eastern part of the Pacific-North American Plate boundary o 95% of the motion occurs in California (70% San Andreas, 25% ECSZ) Seismic risk in terms of people San Andreas Fault, connecting the spreading ridges of the Gulf of California north to the Cascadia Subduction zone o Relatively straight from Cape Mendecino until the Big Bend of the SAF o It is the biggest fault in California, almost 1000 km long and stores up and releases energy must faster than any other fault in California (slip rate of 35mm/yr) (total relative motion rate b/n North America Plate and Pacific Plate is only 50mm/yr) Slip rate of 10mm/yr on ECSZ o Generates biggest and most frequent earthquakes 1906 San Francisco M w 7.9 400 km long rupture 5-8 m of slip 1857 Fort Tejon M w 7.9...
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This note was uploaded on 01/27/2009 for the course GEOL 240Lxg taught by Professor 12:30-01:50pm during the Fall '07 term at USC.
- Fall '07