Statistics – Computation
Scientific paper
Mar 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3305309m&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 5, CiteID L05309
Statistics
Computation
2
Seismology: Earthquake Dynamics (1242), Seismology: Continental Crust (1219), Seismology: Computational Seismology, Seismology: Tomography (6982, 8180), Seismology: Seismicity And Tectonics (1207, 1217, 1240, 1242)
Scientific paper
Detailed seismic tomography reveals that the 2001 Mw 7.7 Bhuj earthquake was associated with a 10-14% increase in Vp and Vs and a 10% decrease in Vp/Vs in the 10 to 35 km depth range covering a 2750 km2 area beneath the aftershock zone. This anomaly could be attributed to the existence of a lithological heterogeneity or a pluton of mafic composition that might have intruded during the rifting in early Jurassic (~160 Ma). The Banni basin and the Wagad uplift are found to be associated with high velocity intrusive bodies extending from 5 to 35 km depth. A few patches of low Vp and Vs and high Vp/Vs between 10 to 30 km depth have also been detected on the causative 45° south dipping north Wagad fault (NWF) for the 2001 mainshock, which may be attributed to a fluid filled fractured rock matrix.
Mandal Prantik
Pujol Jose
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