Evolution of b-values before large earthquakes of mb ≥6.0 in the Andaman region
Prasad, Shweta (ITT Kharagpur (India). Department Geology and Geophysics)
Singh, Chandrani (ITT Kharagpur (India). Department Geology and Geophysics)
Date: |
2015 |
Abstract: |
We have considered six earthquakes of mb ≥6. 0, with focal depths within 45 km, in Andaman region during 2000 to 2012 to examine the spatial variations of b-value at epicentre within a one-year period prior to the occurrence of the earthquakes. We have found a correlation between the low b for the one year time interval and the occurrence of large events. The epicentral b-values of six earthquakes are lower than 1. 0 and five out of six earthquakes show very low b-value at the epicentre. Our study may indicate that b-value can be employed as a possible precursor for the forecasting of a major earthquake. |
Rights: |
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Language: |
Anglès |
Document: |
Article ; recerca ; Versió publicada |
Subject: |
Gutenberg-richter relation ;
B-value ;
Resolution ;
Andaman earthquake |
Published in: |
Geologica acta, Vol. 13 Núm. 3 (September 2015) , p. 205-210 (Articles) , ISSN 1696-5728 |
Adreça alternativa: https://raco.cat/index.php/GeologicaActa/article/view/298505
Adreça alternativa: https://revistes.ub.edu/index.php/GEOACTA/article/view/GeologicaActa2015.13.3.3
DOI: 10.1344/GeologicaActa2015.13.3.3
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Record created 2015-10-01, last modified 2024-06-01