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Annualized and scenario earthquake loss estimations for California

Rui Chen, David M. Branum and Chris J. Wills
Annualized and scenario earthquake loss estimations for California
Earthquake Spectra (November 2013) 29 (4): 1183-1207

Abstract

We update annualized and scenario earthquake loss estimations for California using HAZUS, a loss estimation tool developed by the Federal Emergency Management Agency, and evaluate the effects of changes in input ground motions over the last decade on estimated earthquake losses. Our estimated statewide average earthquake loss to building stock from shaking is approximately $2.8 billion per year, with 32% of it occurring in Los Angeles County and 23% in the San Francisco-Oakland-Fremont metropolitan statistical area. This estimate reflects a 25% to 28% reduction because of changes in input ground motions. Scenario results indicate a 28% to 63% reduction in estimated building economic losses because of changes in input ground motions. Changes in input ground motions are mainly attributed to the use of next generation attenuation relations and, to a lesser extent, to updated earthquake source models and differing approaches for incorporating near-surface site effects.


ISSN: 8755-2930
EISSN: 1944-8201
Serial Title: Earthquake Spectra
Serial Volume: 29
Serial Issue: 4
Title: Annualized and scenario earthquake loss estimations for California
Affiliation: California Geological Survey, Sacramento, CA, United States
Pages: 1183-1207
Published: 201311
Text Language: English
Publisher: Earthquake Engineering Research Institute, Berkeley, CA, United States
References: 52
Accession Number: 2021-002078
Categories: SeismologyEnvironmental geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 7 tables
N37°42'00" - N37°47'60", W122°34'60" - W122°25'00"
N37°47'60" - N37°47'60", W122°16'00" - W122°16'00"
N34°00'00" - N34°00'00", W118°15'00" - W118°15'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2020, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 2021
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