| Abstract: | This report describes work being done at the U.S. Geological Survey on 3-D simulations of earthquake ground motions in sedimentary basins. The ultimate goal of this research is to predict strong ground motions in sedimentary basins for expected large earthquakes. This report emphasizes the inadequacy of using flat-layered models for synthesizing ground motions in sedimentary basins. 2-D and 3-D simulations have demonstrated how the slope of the alluvium-bedrock interface can trap S-waves in the basins, producing prolonged surface wave trains. These large surface waves are not generated in 1-D flat layered models, which underestimate the duration and peak amplitude of shaking. We present results of 3-D simulations for the San Bernardino and Santa Clara valleys, California, for earthquakes on the San Andreas fault. |
| Genre: | Conference Paper |
| ProdID: | 70018227 |
| Citation Author: | Frankel, Arthur |
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| Citation End Page: | 258 |
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| Citation Language: | English |
| Citation Larger Work Title: | Structural Engineering in Natural Hazards Mitigation |
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| Citation Number Of Pages: | 6 |
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| Citation Publisher: | Publ by ASCE |
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| Citation Search Results Text: | Three-dimensional simulations of ground motions in sedimentary basins; 1993; Conference Paper; Structural Engineering in Natural Hazards Mitigation; Frankel, Arthur |
| Citation Start Page: | 253 |
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| Citation Year: | 1993 |
| Type: | citation/reference |
| Text: | Three-dimensional simulations of ground motions in sedimentary basins; 1993; Conference Paper; Structural Engineering in Natural Hazards Mitigation; Frankel, Arthur |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Fri, 1 Jan 1993 00:00 -0600 |
| Publisher: | Publ by ASCE |
