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| Format: | Artículo científico |
| Language: | en |
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Sociedad Mexicana de Ingeniería Sísmica
2006
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| Online Access: | https://www.redalyc.org/articulo.oa?id=61807403 |
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| _version_ | 1866573061871894528 |
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| author | Francisco J. Chávez-García |
| author_facet | Francisco J. Chávez-García |
| contents | Site response and seismic wavefield in Toluca city, Mexico, from strong motion records Francisco J. Chávez-García Hugo Ferrer-Toledo Martín Cárdenas-Soto Ingeniería Since 1993 a network of 6 accelerographs has been operating in the city of Toluca. To date, onlyone seismic event has been recorded by all six stations. We analyse in detail those records with thepurpose of measuring site response and analyzing the recorded wavefield. We compute spectralratios of Fourier amplitude spectra relative to a reference station and of the horizontal componentsrelative to the vertical recorded at each site. We compare the traces in different period bands,analyse group velocity dispersion for each trace, and compute f-k (frequency-wave number) spectra.Our results show, as expected, the large similarity between ground motion in the valley of Mexicoand the valley of Toluca concerning path effects. We show some evidence of late arrivals of energycoming from a direction different from the epicentral one. It is fortunate for Toluca that local siteeffects do not amplify ground motion as much as in Mexico City, eventhough observed path effectslead to similar long durations at intermediate periods (between 1 and 5 sec). A more detailedanalysis is needed, however the quality and quantity of the available records do not allow this atpresent. 2006 artículo científico 0185-092X https://www.redalyc.org/articulo.oa?id=61807403 en http://www.redalyc.org/revista.oa?id=618 Revista de Ingeniería Sísmica application/pdf Sociedad Mexicana de Ingeniería Sísmica Revista de Ingeniería Sísmica (México) Num.74 |
| format | Artículo científico |
| id | redalyc_61807403 |
| language | en |
| publishDate | 2006 |
| publisher | Sociedad Mexicana de Ingeniería Sísmica |
| spellingShingle | Site response and seismic wavefield in Toluca city, Mexico, from strong motion records Francisco J. Chávez-García Ingeniería Site response and seismic wavefield in Toluca city, Mexico, from strong motion records Francisco J. Chávez-García Hugo Ferrer-Toledo Martín Cárdenas-Soto Ingeniería Since 1993 a network of 6 accelerographs has been operating in the city of Toluca. To date, onlyone seismic event has been recorded by all six stations. We analyse in detail those records with thepurpose of measuring site response and analyzing the recorded wavefield. We compute spectralratios of Fourier amplitude spectra relative to a reference station and of the horizontal componentsrelative to the vertical recorded at each site. We compare the traces in different period bands,analyse group velocity dispersion for each trace, and compute f-k (frequency-wave number) spectra.Our results show, as expected, the large similarity between ground motion in the valley of Mexicoand the valley of Toluca concerning path effects. We show some evidence of late arrivals of energycoming from a direction different from the epicentral one. It is fortunate for Toluca that local siteeffects do not amplify ground motion as much as in Mexico City, eventhough observed path effectslead to similar long durations at intermediate periods (between 1 and 5 sec). A more detailedanalysis is needed, however the quality and quantity of the available records do not allow this atpresent. 2006 artículo científico 0185-092X https://www.redalyc.org/articulo.oa?id=61807403 en http://www.redalyc.org/revista.oa?id=618 Revista de Ingeniería Sísmica application/pdf Sociedad Mexicana de Ingeniería Sísmica Revista de Ingeniería Sísmica (México) Num.74 |
| title | Site response and seismic wavefield in Toluca city, Mexico, from strong motion records |
| topic | Ingeniería |
| url | https://www.redalyc.org/articulo.oa?id=61807403 |