Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area
This paper presents use of semiempirical method for seismic hazard zonation. The seismotectonically important region of Uttarakhand Himalaya has been considered in this work. Ruptures along the lineaments in the area identified from tectonic map are modeled deterministically using semi empirical app...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | International Journal of Geophysics |
| Online Access: | http://dx.doi.org/10.1155/2013/825276 |
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| author | Anand Joshi Ashvini Kumar Heriberta Castanos Cinna Lomnitz |
| author_facet | Anand Joshi Ashvini Kumar Heriberta Castanos Cinna Lomnitz |
| author_sort | Anand Joshi |
| collection | DOAJ |
| description | This paper presents use of semiempirical method for seismic hazard zonation. The seismotectonically important region of Uttarakhand Himalaya has been considered in this work. Ruptures along the lineaments in the area identified from tectonic map are modeled deterministically using semi empirical approach given by Midorikawa (1993). This approach makes use of attenuation relation of peak ground acceleration for simulating strong ground motion at any site. Strong motion data collected over a span of three years in this region have been used to develop attenuation relation of peak ground acceleration of limited magnitude and distance applicability. The developed attenuation relation is used in the semi empirical method to predict peak ground acceleration from the modeled rupture planes in the area. A set of values of peak ground acceleration from possible ruptures in the area at the point of investigation is further used to compute probability of exceedance of peak ground acceleration of values 100 and 200 gals. The prepared map shows that regions like Tehri, Chamoli, Almora, Srinagar, Devprayag, Bageshwar, and Pauri fall in a zone of 10% probability of exceedence of peak ground acceleration of value 200 gals. |
| format | Article |
| id | doaj-art-2d7aa6cd6b15458a8d584b82c5f982d8 |
| institution | Kabale University |
| issn | 1687-885X 1687-8868 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Geophysics |
| spelling | doaj-art-2d7aa6cd6b15458a8d584b82c5f982d82025-02-03T05:50:56ZengWileyInternational Journal of Geophysics1687-885X1687-88682013-01-01201310.1155/2013/825276825276Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the AreaAnand Joshi0Ashvini Kumar1Heriberta Castanos2Cinna Lomnitz3Department of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee 247 667, IndiaDepartment of Earth Sciences, Indian Institute of Technology Roorkee, Roorkee 247 667, IndiaInstitute of Economics Research, National University of Mexico, UNAM, 04510 Mexico, DF, MexicoInstitute of Geophysics, National University of Mexico, UNAM, 04510 Mexico, DF, MexicoThis paper presents use of semiempirical method for seismic hazard zonation. The seismotectonically important region of Uttarakhand Himalaya has been considered in this work. Ruptures along the lineaments in the area identified from tectonic map are modeled deterministically using semi empirical approach given by Midorikawa (1993). This approach makes use of attenuation relation of peak ground acceleration for simulating strong ground motion at any site. Strong motion data collected over a span of three years in this region have been used to develop attenuation relation of peak ground acceleration of limited magnitude and distance applicability. The developed attenuation relation is used in the semi empirical method to predict peak ground acceleration from the modeled rupture planes in the area. A set of values of peak ground acceleration from possible ruptures in the area at the point of investigation is further used to compute probability of exceedance of peak ground acceleration of values 100 and 200 gals. The prepared map shows that regions like Tehri, Chamoli, Almora, Srinagar, Devprayag, Bageshwar, and Pauri fall in a zone of 10% probability of exceedence of peak ground acceleration of value 200 gals.http://dx.doi.org/10.1155/2013/825276 |
| spellingShingle | Anand Joshi Ashvini Kumar Heriberta Castanos Cinna Lomnitz Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area International Journal of Geophysics |
| title | Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area |
| title_full | Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area |
| title_fullStr | Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area |
| title_full_unstemmed | Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area |
| title_short | Seismic Hazard of the Uttarakhand Himalaya, India, from Deterministic Modeling of Possible Rupture Planes in the Area |
| title_sort | seismic hazard of the uttarakhand himalaya india from deterministic modeling of possible rupture planes in the area |
| url | http://dx.doi.org/10.1155/2013/825276 |
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