| Abstract: | We examined short-period P waves to investigate if waveform data could be used to determine which of two nodal planes was the actual fault plane for a small (ML 4,6) earthquake near Upland, California. The southwest trending fault plane consistently gave better fitting solutions than the southeast-trending plane. We determined a moment of 4.2 ?? 1022 dyne-cm. The rupture velocity, and thus the source area could not be well resolved, but if we assume a reasonable rupture velocity of 0.87 times the shear wave velocity, we obtain a source area of 0.97 km2 and a stress drop of 38 bars. -from Authors |
| Genre: | Article |
| ProdID: | 70015740 |
| Citation Author: | Mori, J.; Hartzell, S. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 518 |
| Citation Issue: | 3 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Bulletin - Seismological Society of America |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 12 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Source inversion of the 1988 Upland, California, earthquake: determination of a fault plane for a small event; 1990; Article; Journal; Bulletin - Seismological Society of America; Mori, J.; Hartzell, S. |
| Citation Start Page: | 507 |
| Citation Volume: | 80 |
| Citation Year: | 1990 |
| Type: | citation/reference |
| Text: | Source inversion of the 1988 Upland, California, earthquake: determination of a fault plane for a small event; 1990; Article; Journal; Bulletin - Seismological Society of America; Mori, J.; Hartzell, S. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1990 00:00 -0600 |
| Publisher: | |
