Use of LP Surface Waves for Source Characterization
The complex cepstrum technique is found to provide an effective means for removing undesirable modulations of surface wave spectra caused by interference of either multiple sources or multipath propagation. This technique has greatly enhanced the utility of surface wave spectra for characterization...
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Oxford University Press
1972
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fthighwire:oai:open-archive.highwire.org:gji:31/1-3/111 2023-05-15T15:05:25+02:00 Use of LP Surface Waves for Source Characterization Tsai, Yi-Ben 1972-12-01 00:00:00.0 text/html http://gji.oxfordjournals.org/cgi/content/short/31/1-3/111 https://doi.org/10.1111/j.1365-246X.1972.tb02362.x en eng Oxford University Press http://gji.oxfordjournals.org/cgi/content/short/31/1-3/111 http://dx.doi.org/10.1111/j.1365-246X.1972.tb02362.x Copyright (C) 1972, Oxford University Press Articles TEXT 1972 fthighwire https://doi.org/10.1111/j.1365-246X.1972.tb02362.x 2015-02-28T18:49:03Z The complex cepstrum technique is found to provide an effective means for removing undesirable modulations of surface wave spectra caused by interference of either multiple sources or multipath propagation. This technique has greatly enhanced the utility of surface wave spectra for characterization of seismic sources. An empirical analysis of surface wave spectra on a regional basis is made on seismic events in the Arctic Ocean and the Eurasian Continent. The results indicate that: (1) the spectral shapes of Rayleigh waves often are similar among events in the same epicentral area but vary substantially from one epicentral area to another, (2) a great majority of earthquakes can be differentiated from underground nuclear explosions based on spectral shapes of Rayleigh waves, and (3) spectral shapes of Love waves do not vary as much as Rayleigh waves from one epicentral area to another. Finally, a method for systematically finding the source mechanism and focal depth of an earthquake using the observed and theoretical surface wave spectra are devised and tested. The results from tests of the method on several earthquakes are consistent with other independent evidence. Text Arctic Arctic Ocean HighWire Press (Stanford University) Arctic Arctic Ocean Geophysical Journal International 31 1-3 111 130 |
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HighWire Press (Stanford University) |
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English |
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Articles |
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Articles Tsai, Yi-Ben Use of LP Surface Waves for Source Characterization |
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The complex cepstrum technique is found to provide an effective means for removing undesirable modulations of surface wave spectra caused by interference of either multiple sources or multipath propagation. This technique has greatly enhanced the utility of surface wave spectra for characterization of seismic sources. An empirical analysis of surface wave spectra on a regional basis is made on seismic events in the Arctic Ocean and the Eurasian Continent. The results indicate that: (1) the spectral shapes of Rayleigh waves often are similar among events in the same epicentral area but vary substantially from one epicentral area to another, (2) a great majority of earthquakes can be differentiated from underground nuclear explosions based on spectral shapes of Rayleigh waves, and (3) spectral shapes of Love waves do not vary as much as Rayleigh waves from one epicentral area to another. Finally, a method for systematically finding the source mechanism and focal depth of an earthquake using the observed and theoretical surface wave spectra are devised and tested. The results from tests of the method on several earthquakes are consistent with other independent evidence. |
format |
Text |
author |
Tsai, Yi-Ben |
author_facet |
Tsai, Yi-Ben |
author_sort |
Tsai, Yi-Ben |
title |
Use of LP Surface Waves for Source Characterization |
title_short |
Use of LP Surface Waves for Source Characterization |
title_full |
Use of LP Surface Waves for Source Characterization |
title_fullStr |
Use of LP Surface Waves for Source Characterization |
title_full_unstemmed |
Use of LP Surface Waves for Source Characterization |
title_sort |
use of lp surface waves for source characterization |
publisher |
Oxford University Press |
publishDate |
1972 |
url |
http://gji.oxfordjournals.org/cgi/content/short/31/1-3/111 https://doi.org/10.1111/j.1365-246X.1972.tb02362.x |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_relation |
http://gji.oxfordjournals.org/cgi/content/short/31/1-3/111 http://dx.doi.org/10.1111/j.1365-246X.1972.tb02362.x |
op_rights |
Copyright (C) 1972, Oxford University Press |
op_doi |
https://doi.org/10.1111/j.1365-246X.1972.tb02362.x |
container_title |
Geophysical Journal International |
container_volume |
31 |
container_issue |
1-3 |
container_start_page |
111 |
op_container_end_page |
130 |
_version_ |
1766337120181420032 |