Abstract:
NW Himalayan Fold and Thrust Belt is considered to be seismically one of the active zone in the world. The detailed seismological study of the area indicates that seismicity (³4.0 Mw) appears to be associated with both the surface and blind faults. At the same time, clustering of events in specific parts along the surface faults shows that some fault segments, especially in the Hinterland zone are more active. In parts of the active deformational front like Salt Range, Southern Potwar and Bannu, lesser seismic activity (³4.0 Mw) could be due to the damping effect of the thick Precambrian salt. Majority of the earthquakes (86%) range in magnitude from 4.0 to 4.9 Mw followed by 107 events (13%), having magnitude ranging from 5.0 to 5.9 Mw. The remaining 1% range from 6.0 to 6.7 Mw. There is a predominance of shallow seismicity (
Page(s):
9-50
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Meterology, Volume: 2, Issue: 4, Year: 2005