| Abstract: | Five small-aperture (0.5 to 7.7 m) quadrilaterals were installed across the San Andreas fault and newly formed extensional cracks shortly after the October 17, 1989 Loma Prieta M7.1 earthquake. Measurements of line-length changes from as early as 4 d up to 184 d after the earthquake in nail quadrilaterals indicate a small amount of right-lateral postseismic slip on the San Andreas fault. The site near the southeast end of the 1989 aftershock zone on the San Andreas fault showed about 5??2 mm of postseismic right-lateral component of slip in addition to 23 mm of right-lateral coseismic movement. The site near the northwest end of aftershocks likewise showed about 5??2 mm of postseismic slip, but after only 5 mm of coseismic slip. The smal slip values, in spite of uncertainties, clearly show that the lack of coseismic surface slip associated with the earthquake was not followed by large postseismic slip. -from Author |
| Genre: | Article |
| ProdID: | 70015884 |
| Citation Author: | Rymer, M. J. |
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| Citation End Page: | 1792 |
| Citation Issue: | 10 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geophysical Research Letters |
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| Citation Number Of Pages: | 4 |
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| Citation Search Results Text: | Near-fault measurement of postseismic slip associated with the 1989 Loma Prieta, California, earthquake; 1990; Article; Journal; Geophysical Research Letters; Rymer, M. J. |
| Citation Start Page: | 1789 |
| Citation Volume: | 17 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Near-fault measurement of postseismic slip associated with the 1989 Loma Prieta, California, earthquake; 1990; Article; Journal; Geophysical Research Letters; Rymer, M. J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
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