| Abstract: | We analyze strong-motion recordings of the Ms6.6 Superstition Hills earthquake to determine the timing, location, spatial extent, and rupture velocity of the subevents that produced the bulk of the high-frequency (0.5 to 4Hz) seismic energy radiated by this shock. The earthquake can be characterized by three principal subevents, the largest ones occurring about 3 and 10sec after initiation of rupture. Timing relationships between pulses on the seismograms indicate that the three subevents are located within 8km of each other along the northern portion of the Superstition Hills fault. The two largest subevents display different directivity effects. We apply a tomographic source inversion to the integrated accelerograms to determine the slip acceleration on the fault as a function of time and distance, based on a one-dimensional fault model. -from Authors |
| Genre: | Article |
| ProdID: | 70015850 |
| Citation Author: | Frankel, A.; Wennerberg, L. |
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| Citation End Page: | 541 |
| Citation Issue: | 2 |
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| Citation Language: | English |
| Citation Larger Work Title: | Bulletin - Seismological Society of America |
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| Citation Number Of Pages: | 27 |
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| Citation Search Results Text: | Rupture process of the Ms 6.6 Superstition Hills, California, earthquake determined from strong-motion recordings: application of tomographic source inversion; 1989; Article; Journal; Bulletin - Seismological Society of America; Frankel, A.; Wennerberg, L. |
| Citation Start Page: | 515 |
| Citation Volume: | 79 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Rupture process of the Ms 6.6 Superstition Hills, California, earthquake determined from strong-motion recordings: application of tomographic source inversion; 1989; Article; Journal; Bulletin - Seismological Society of America; Frankel, A.; Wennerberg, L. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
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