SeismicSources - Seismic Sources Seismic CEE 431/ESS465...

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Seismic Sources Seismic Sources CEE 431/ESS465 CEE 431/ESS465
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Seismic Sources Seismic Sources Identification Geologic evidence Field reconnaissance Trench logging Test pits, borings Airphoto interpretation Remote sensing Geophysics Historical seismicity
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Seismic Sources Seismic Sources Fault types
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Seismic Sources Seismic Sources Source zones May consist of mapped fault (known fault geometry) Areas of high seismicity Areas of shallow or outcropping bedrock Areas of sparse surficial vegetation May consist of diffuse zone (unknown fault geometry) Areas of low seismicity Areas with significant sediment cover Areas with dense vegetation cover California California Washington Washington
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Seismic Sources Seismic Sources Fault activity Active fault? NRC definitions require: Movement at or near the ground surface at least once within the past 35,000 yrs or movement of a recurring nature within the past 500,000 yrs Macroseismicity instrumentally determined with records of sufficient precision to demonstrate a direct relationship
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This note was uploaded on 08/09/2009 for the course CEE 431 taught by Professor Eberhard during the Winter '06 term at Washington University in St. Louis.

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SeismicSources - Seismic Sources Seismic CEE 431/ESS465...

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