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Developing ShakeCast statistical fragility analysis framework for rapid post-earthquake assessment

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Abstract

When an earthquake occurs, the U. S. Geological Survey (USGS) ShakeMap estimates the extent of potentially damaging shaking and provides overall information regarding the affected areas. The USGS ShakeCast system is a freely-available, post-earthquake situational awareness application that automatically retrieves earthquake shaking data from ShakeMap, compares intensity measures against users’ facilities, sends notifications of potential damage to responsible parties, and generates facility damage assessment maps and other web-based products for emergency managers and responders. We describe notable improvements of the ShakeMap and the ShakeCast applications. We present a design for comprehensive fragility implementation, integrating spatially-varying ground-motion uncertainties into fragility curves for ShakeCast operations. For each facility, an overall inspection priority (or damage assessment) is assigned on the basis of combined component-based fragility curves using pre-defined logic. While regular ShakeCast users receive overall inspection priority designations for each facility, engineers can access the full fragility analyses for further evaluation.

Suggested Citation

Lin, K., Wald, D., 2012, Developing ShakeCast statistical fragility analysis framework for rapid post-earthquake assessment, in Proceedings of the 15th World Conference on Earthquake Engineering (15WCEE), Lisbon, Portugal, September 24-28.

Publication type Conference Paper
Publication Subtype Conference Paper
Title Developing ShakeCast statistical fragility analysis framework for rapid post-earthquake assessment
Year Published 2012
Language English
Publisher IAEE
Publisher location Tokyo, Japan
Contributing office(s) Geologic Hazards Science Center
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title Proceedings of the 15th World Conference on Earthquake Engineering (15WCEE), Lisbon, Portugal, September 24-28
Additional publication details