Impact of a large San Andreas fault earthquake on tall buildings in southern California

Swaminathan Krishnan, Chen Ji, Dimitri Komatitsch, Jeroen Tromp

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In 1857 a large earthquake of magnitude 7.9 (Sieh 1978b) occurred on the San Andreas fault with rupture initiating at Parkfield in Central California and propagating in a southeasterly direction over a distance of more than 360 km. Such a unilateral rupture produces significant directivity toward the San Fernando and Los Angeles basins. Indeed, newspaper reports (Agnew and Sieh 1978; Meltzner and Wald 1998) of sloshing observed in the Los Angeles river point to long-duration (1.2 min) and long-period (2.8 s) shaking, which could have a severe impact on present-day tall buildings, especially in the mid-height range. Using state-of-the-art computational tools in seismology and structural engineering, validated using data from the Northridge earthquake, we determine the damage in 18-story steel moment-frame buildings in southern California due to ground motion from a hypothetical magnitude 7.9 earthquake on the San Andreas fault. Our study indicates that serious damage occurs in these buildings at many locations in the region, leading to wide-spread building closures and seriously affecting the regional economy.

Original languageEnglish (US)
Title of host publication8th US National Conference on Earthquake Engineering 2006
Pages8966-8977
Number of pages12
StatePublished - Dec 1 2006
Externally publishedYes
Event8th US National Conference on Earthquake Engineering 2006 - San Francisco, CA, United States
Duration: Apr 18 2006Apr 22 2006

Publication series

Name8th US National Conference on Earthquake Engineering 2006
Volume15

Other

Other8th US National Conference on Earthquake Engineering 2006
CountryUnited States
CitySan Francisco, CA
Period4/18/064/22/06

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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  • Cite this

    Krishnan, S., Ji, C., Komatitsch, D., & Tromp, J. (2006). Impact of a large San Andreas fault earthquake on tall buildings in southern California. In 8th US National Conference on Earthquake Engineering 2006 (pp. 8966-8977). (8th US National Conference on Earthquake Engineering 2006; Vol. 15).