Location
San Diego, California
Presentation Date
28 May 2010, 2:00 pm - 3:30 pm
Abstract
The conventional source-based method of probabilistic seismic-hazard assessment is considered difficult to conduct for regions lacking adequate information on the source characteristics, or with a paucity of recorded strong ground motion data. Meanwhile, the historic method is unreliable in estimating the hazard at low probability. This paper proposes a midway approach, derived from the source-based method, yet does not require the characterization of seismic sources. While the method possesses the simplicity of the historic method, it is extended to account for large events that have not been observed historically, in order to improve the reliability of hazard calculation at low probability. Moreover, any site-specific and event-specific characteristics that influence ground motions, such as site effects, and directivity can be incorporated in the early stage of the numerical procedure, which is considered beneficial for microzonation study. This paper demonstrates the application of this method for three cities in China, Iran, and India respectively, in comparison with previous results computed by source-based method.
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
5th International Conference on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2010 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Tsang, Hing-Ho; Yaghmaei-Sabegh, Saman; Anbazhagan, P.; Sheikh, M. Neaz; Sitharam, T. G.; and Vinod, J. S., "An alternative Method for Probabilistic Seismic-Hazard Assessment: A Case Study of Three Cities" (2010). International Conferences on Recent Advances in Geotechnical Earthquake Engineering and Soil Dynamics. 2.
https://scholarsmine.mst.edu/icrageesd/05icrageesd/session06b/2
Included in
An alternative Method for Probabilistic Seismic-Hazard Assessment: A Case Study of Three Cities
San Diego, California
The conventional source-based method of probabilistic seismic-hazard assessment is considered difficult to conduct for regions lacking adequate information on the source characteristics, or with a paucity of recorded strong ground motion data. Meanwhile, the historic method is unreliable in estimating the hazard at low probability. This paper proposes a midway approach, derived from the source-based method, yet does not require the characterization of seismic sources. While the method possesses the simplicity of the historic method, it is extended to account for large events that have not been observed historically, in order to improve the reliability of hazard calculation at low probability. Moreover, any site-specific and event-specific characteristics that influence ground motions, such as site effects, and directivity can be incorporated in the early stage of the numerical procedure, which is considered beneficial for microzonation study. This paper demonstrates the application of this method for three cities in China, Iran, and India respectively, in comparison with previous results computed by source-based method.
