Temporal and spatial variations in the magnitude of completeness for homogenized moment magnitude catalogue for northeast India |
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Authors: | RANJIT DAS H R WASON M L SHARMA |
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Institution: | 1.Department of Earthquake Engineering,Indian Institute of Technology Roorkee,Roorkee,India |
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Abstract: | Northeast India region is one of the most seismically active areas in the world. Events data for the period 1897–2010, used
in this study has been largely compiled from global ISC, NEIC and GCMT databases. Historical seismicity catalogue of Gupta
et al (1986) and some events data from the bulletins of India Meteorological Department are also used. Orthogonal regression relations
for conversion of body and surface wave magnitudes to M
w,HRVD based on events data for the period 1978–2006 have been derived. An Orthogonal Standard Regression (OSR) relationship has
also been obtained for scaling of intensity estimates to M
w,NEIC using 126 global intensity events with intensity VI or greater during the period 1975–2010. |
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Keywords: | |
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