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10:25:2011 - 25 October 2011 Santa Ana Winds o Pushed...

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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 Risk = Probable Loss (Lives & Dollars) = Hazard x Exposure x Fragility 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
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