Basic Principles of Earthquake Loss Estimation - …

1A Campaign by theA Campaign by theEarthquake Engineering Research InstituteEarthquake Engineering Research InstituteNorthern California ChapterNorthern California ChapterBasic Principles ofEarthquake loss Estimation -PML and Beyond- Single-Site seismic RiskSeismic Risk Terminology Exposure: the buildings, contents, people andprocesses at risk Earthquake hazards : ground shaking, soilliquefaction, surface fault rupture, slopeinstabilities, tsunami, seiche, etc. seismic Vulnerability: fragility ordamageability, the relationship betweenhazard and damage, loss or disruption Risk: the relationship between loss severity andfrequency2 RiskRisk occurs at the intersection ofexposure, hazard and vulnerabilityR = E x H x VR = E x H x VRiskRisk has at least two dimensions: severity and frequency, or mean and varianceAnnual Frequencyof ExceedanceLoss, Damage, Casualties or Downtime3 Return Period vs.

7 Seismic Hazards Ð Ground shaking USGS National Seismic Hazard Mapping Project 2002 Where losses are magnitude dependent, multi-site, or multi-period, use an event set

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  Principles, Seismic, Loss, Hazards, Estimation, Earthquake, Principles of earthquake loss estimation, Seismic hazard

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