Source study of the 1906 San Francisco earthquake.
Material type:
TextLanguage: ENG Publication details: AUG 1993Description: 39 p. : ill., mapsSubject: All quality teleseismic recordings of the great 1906 San Francisco earthquake archived in the 1908 Carnegie Report were scanned and digitized. First order results were obtained by comparing complexity and amplitudes of teleseismic waveforms from the 1906 earthquake with well calibrated, similarly located, more recent earthquakes (1979 Coyote Lake, 1984 Morgan Hill, and 1989 Loma Prieta earthquakes) at nearly co-located modern stations. Consideration of the amplitude and frequency content of the 1906 teleseismic data indicated the scale length of the largest asperity to be less than about 40km. With rough constraints on the largest asperity a suite of estimated synthetic ground velocities was produced assuming a slip distribution similar to that of the Loma Prieta earthquake but with three times as much slip. Peak ground velocity amplitudes are substantially greater than those recorded during the Loma Prieta earthquake, and are comparable to those predicted by the attentuation relationship of Joyner and Boore (1988) for a magnitude M "SUB w" =7.7 earthquake
| Item type | Current library | Collection | Call number | Status | Date due | Barcode | |
|---|---|---|---|---|---|---|---|
Books
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Australian Emergency Management Library | BOOK | 551.220979461 SOU (Browse shelf(Opens below)) | Available | 005729051 |
Bibliography: p. 1018-1019
Reprinted from Bulletin of the Seismological Society of America; 1993; Vol. 83; No. 4; p. 981-1019
Reprint
All quality teleseismic recordings of the great 1906 San Francisco earthquake archived in the 1908 Carnegie Report were scanned and digitized. First order results were obtained by comparing complexity and amplitudes of teleseismic waveforms from the 1906 earthquake with well calibrated, similarly located, more recent earthquakes (1979 Coyote Lake, 1984 Morgan Hill, and 1989 Loma Prieta earthquakes) at nearly co-located modern stations. Consideration of the amplitude and frequency content of the 1906 teleseismic data indicated the scale length of the largest asperity to be less than about 40km. With rough constraints on the largest asperity a suite of estimated synthetic ground velocities was produced assuming a slip distribution similar to that of the Loma Prieta earthquake but with three times as much slip. Peak ground velocity amplitudes are substantially greater than those recorded during the Loma Prieta earthquake, and are comparable to those predicted by the attentuation relationship of Joyner and Boore (1988) for a magnitude M "SUB w" =7.7 earthquake
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