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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.
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Language: Anglès.
Document: article ; recerca ; publishedVersion
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: http://www.raco.cat/index.php/GeologicaActa/article/view/298505
DOI: 10.1344/GeologicaActa2015.13.3.3

6 p, 1.6 MB

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Articles > Published articles > Geologica acta
Articles > Research articles

 Record created 2015-10-01, last modified 2017-10-14

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