10:25:2011

10:25:2011 - 25 October 2011 Santa Ana Winds o Pushed through mountains to the north o Often lead to wildfires 3 Types of Earthquakes o Plates

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25 October 2011 Santa Ana Winds o Pushed through mountains to the north o Often lead to wildfires 3 Types of Earthquakes o Plates collide – most severe o Plates slide parallel – moderate o Plates pull apart – smallest 7.2 Earthquake in Turkey o Fairly severe Earthquake Intensity (Damage) o Earthquake magnitude o Distance from hypocenter (focus) o Duration of shaking o Type of rock or sediment making up ground surface and subsurface o Building style – design, type of materials, height Risk Equation o o Hazard – faulting, shaking, land sliding, liquefaction o Exposure – extent and density of built environment o Fragility – structural fragility Aftershock o Higher level of earthquakes than before Foreshock o May signal a larger earthquake to come o Releases friction that allows plates to slide Earthquake predictability o Plate boundaries have been mapped, rate of movement are known over long terms
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This note was uploaded on 12/06/2011 for the course GEOG 260Lg at USC.

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10:25:2011 - 25 October 2011 Santa Ana Winds o Pushed through mountains to the north o Often lead to wildfires 3 Types of Earthquakes o Plates

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