| Abstract: | This paper briefly summarizes some recent developments in studies of seismic source parameter estimation, emphasizing the essential similarities between mining-induced seismogenic-failure and naturally occurring, tectonically driven earthquakes. The root-mean-square acceleration, a//r//m//s, shows much promise as an observational measure of high-frequency ground motion; it is very stable observationally, is insensitive to radiation pattern, and can be related linearly to the dynamic stress differences arising in the faulting process. To interpret a//r//m//s correctly, however, requires knowledge of f//m//a//x, the high-frequency band-limitation of the radiated field of earthquakes. As a practical matter, f//m//a//x can be due to any number of causes, but an essential ambiguity is whether or not f//m//a//x can arise from source properties alone. The interaction of the aftershocks of the Oroville, California, earthquake illustrates how a//r//m//s stress drops may be connected to detailed seismicity patterns. |
| Genre: | Conference Paper |
| ProdID: | 70014006 |
| Citation Author: | Hanks, T. C. |
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| Citation Editor: | Gay N.C.Wainwright E.H. |
| Citation End Page: | 44 |
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| Citation Language: | English |
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| Citation Number Of Pages: | 6 |
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| Citation Publisher: | South African Inst of Mining and Metallurgy |
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| Citation Search Results Text: | A//r//m//s AND SEISMIC SOURCE STUDIES.; 1984; Conference Paper; Hanks, T. C. |
| Citation Start Page: | 39 |
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| Citation Year: | 1984 |
| Type: | citation/reference |
| Text: | A//r//m//s AND SEISMIC SOURCE STUDIES.; 1984; Conference Paper; Hanks, T. C. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1984 00:00 -0600 |
| Publisher: | South African Inst of Mining and Metallurgy |
