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Applications of GIS in Estimating the Probable Maximum Earthquake Magnitude for Amaravati Region, Andhra Pradesh, India
https://orcid.org/http://orcid.org/0000-0002-3572-0978
https://orcid.org/http://orcid.org/0000-0001-8696-6583
An earthquake magnitude and their sizes have a significant impact on damage at a particular site. Hazard analysis provides the insights for vulnerability statistics of the area that is considered under study. Several important parameters including probable maximum earthquake magnitudes (Mmax) are required to quantify the seismic risk. In this study to estimate the Mmax an area of 500 km radial distance has been considered as a seismic study area keeping a center latitude of 16° 52′N and longitude of 80° 51′E. An earthquake catalogue prepared for the period of 221 years, the earthquake data collected from 1801 to 2022, and the historical earthquake data has been collected from several data sources in order to investigate the seismicity of the area. The declustering techniques are used to remove the dependent events from earthquake data. All different earthquake magnitudes are converted into a moment magnitude (Mw) using empirical relations. To estimate the seismic hazard parameters the catalogue completeness analysis was carried out; for this entire catalogue grouped into six different magnitude ranges with a constant bin width of 0.5 Mw. The whole extended study region has been separated into four source zones and designated with zone 1, 2, 3, and 4 based on estimated hazard parameters. The Mmax was estimated considering the data from each zone using Gupta and Kijko-Sellevoll-Bayes (KSB) methods. It has been observed that the obtained Mmax is varying from 6.1 to 6.9 Mw according to Gupta’s method whereas as per the KSB method the estimated Mmax varies from 6.0 to 7.7 Mw. The subzone-2 is contributing the highest value of Mmax compared to other zones. The estimated Mmax can be used further to quantify the seismic hazard risk of the Amaravati region.
Applications of GIS in Estimating the Probable Maximum Earthquake Magnitude for Amaravati Region, Andhra Pradesh, India
https://orcid.org/http://orcid.org/0000-0002-3572-0978
https://orcid.org/http://orcid.org/0000-0001-8696-6583
An earthquake magnitude and their sizes have a significant impact on damage at a particular site. Hazard analysis provides the insights for vulnerability statistics of the area that is considered under study. Several important parameters including probable maximum earthquake magnitudes (Mmax) are required to quantify the seismic risk. In this study to estimate the Mmax an area of 500 km radial distance has been considered as a seismic study area keeping a center latitude of 16° 52′N and longitude of 80° 51′E. An earthquake catalogue prepared for the period of 221 years, the earthquake data collected from 1801 to 2022, and the historical earthquake data has been collected from several data sources in order to investigate the seismicity of the area. The declustering techniques are used to remove the dependent events from earthquake data. All different earthquake magnitudes are converted into a moment magnitude (Mw) using empirical relations. To estimate the seismic hazard parameters the catalogue completeness analysis was carried out; for this entire catalogue grouped into six different magnitude ranges with a constant bin width of 0.5 Mw. The whole extended study region has been separated into four source zones and designated with zone 1, 2, 3, and 4 based on estimated hazard parameters. The Mmax was estimated considering the data from each zone using Gupta and Kijko-Sellevoll-Bayes (KSB) methods. It has been observed that the obtained Mmax is varying from 6.1 to 6.9 Mw according to Gupta’s method whereas as per the KSB method the estimated Mmax varies from 6.0 to 7.7 Mw. The subzone-2 is contributing the highest value of Mmax compared to other zones. The estimated Mmax can be used further to quantify the seismic hazard risk of the Amaravati region.
Applications of GIS in Estimating the Probable Maximum Earthquake Magnitude for Amaravati Region, Andhra Pradesh, India
https://orcid.org/http://orcid.org/0000-0002-3572-0978
https://orcid.org/http://orcid.org/0000-0001-8696-6583
An earthquake magnitude and their sizes have a significant impact on damage at a particular site. Hazard analysis provides the insights for vulnerability statistics of the area that is considered under study. Several important parameters including probable maximum earthquake magnitudes (Mmax) are required to quantify the seismic risk. In this study to estimate the Mmax an area of 500 km radial distance has been considered as a seismic study area keeping a center latitude of 16° 52′N and longitude of 80° 51′E. An earthquake catalogue prepared for the period of 221 years, the earthquake data collected from 1801 to 2022, and the historical earthquake data has been collected from several data sources in order to investigate the seismicity of the area. The declustering techniques are used to remove the dependent events from earthquake data. All different earthquake magnitudes are converted into a moment magnitude (Mw) using empirical relations. To estimate the seismic hazard parameters the catalogue completeness analysis was carried out; for this entire catalogue grouped into six different magnitude ranges with a constant bin width of 0.5 Mw. The whole extended study region has been separated into four source zones and designated with zone 1, 2, 3, and 4 based on estimated hazard parameters. The Mmax was estimated considering the data from each zone using Gupta and Kijko-Sellevoll-Bayes (KSB) methods. It has been observed that the obtained Mmax is varying from 6.1 to 6.9 Mw according to Gupta’s method whereas as per the KSB method the estimated Mmax varies from 6.0 to 7.7 Mw. The subzone-2 is contributing the highest value of Mmax compared to other zones. The estimated Mmax can be used further to quantify the seismic hazard risk of the Amaravati region.
Applications of GIS in Estimating the Probable Maximum Earthquake Magnitude for Amaravati Region, Andhra Pradesh, India
Lecture Notes in Civil Engineering
Mesapam, Shashi (editor) / Ohri, Anurag (editor) / Sridhar, Venkataramana (editor) / Tripathi, Nitin Kumar (editor) / Reddy, M. Madhusudhan (author) / Siddhardha, R. (author) / Kumar, G. Kalyan (author) / Suresh, R. (author)
International Virtual Conference on Developments and Applications of Geomatics ; 2022
2024-02-27
10 pages
Article/Chapter (Book)
Electronic Resource
English
Seismic Source Characterization for Amaravati Capital Region, Andhra Pradesh, India
| Springer Verlag | 2021
Flood forecasting in Andhra Pradesh, India
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