Estimating ground motions using recorded accelerograms
Abstract
A procedure for estimating ground motions using recorded accelerograms is described. The premise of the study is the assumption that future ground motions will be similar to those observed for similar site and tectonic situations in the past. Direct techniques for scaling existing accelerograms have been developed, based on relative estimates of local magnitude, M_L. Design events are described deterministically in terms of fault dimension, tectonic setting (stress drop), fault distance, and site conditions. A combination of empirical and theoretical arguments is used to develop relationships between M_L and other earthquake magnitude scales. In order to minimize scaling errors due to lack of understanding of the physics of strong ground motion, the procedure employs as few intermediate scaling laws as possible. The procedure conserves a meaningful measure of the uncertainty inherent when predicting ground motions from simple parameterizations of earthquake sources and site conditions.
Additional Information
© 1986 D. Reidel Publishing Company. We thank Professors Hiroo Kanamori and Paul Jennings for helpful discussions of this work. They also allowed full access to preliminary results on their work with the local magnitude scale. We thank Professor Frank Stacey for a thoughtful review of the manuscript. We also thank Jeff Johnson. Art Darrow, Doug Coats and Linda Yau for their participation in this project. Finally, we thank James Hileman and C. B. Crouse for their help with the Japanese strong motion data. This work was funded by Exxon Production Research Company.Additional details
- Eprint ID
- 43994
- DOI
- 10.1007/BF01904051
- Resolver ID
- CaltechAUTHORS:20140225-152223066
- Exxon Production Research Company
- Created
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2014-02-26Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences