GEOL 106 Lecture Notes - 1989 Loma Prieta Earthquake, Acapulco, Seismic Wave

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Chapter 2 earthquakes and from chapter 9 section on. Surface faulting: structures on the fault will be disrupted by the tearing, so don"t build right on active faults motion. San francisco, and other parts of san andreas fault: 2. Ground shaking: this is generally the greatest threat to buildings and people in a big earthquake, the shaking can be severe even. 100"s ok kilometers away from the epicenter: the amount of shaking also depends on the nature of the soil/rocks in the area. Soft soils (eg. clays ) shake more than . Stiff soils (eg sand) which skakes more than . The closer you are to the quake, the greater the damage : 2. The greater the magnitude of the quake, the greater the. But-> this is modified by natural and anthropogenic conditions: natural : nature of soils/rocks, anthropogenic: nature of the structures that we build.

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