Focal mechanism solutions and nature of plate movements in Pakistan

摘要: Abstract From the seismic point of view, territory Pakistan which lies between latitude 23°–37° N and longitude 61°–75° E is one most active zones in world. The importance this area terms movements Indian plate with respect to Eurasia on west. Seismicity, as well focal mechanism- solutions, throws a considerable light nature forces acting area. All available along 12 new ones, have been considered for present study. Their relationship major faults discussed. majority solutions central northern parts show strike-slip faulting left-lateral sense motion, followed by thrust faulting; few normal faulting. This suggests that moving Eurasian Chaman fault, Quetta transverse zone, Sulaiman Ranges Hazara thrusts region joining Hazara/Kashmir syntaxis. orientations P T axes studied. It seen large number cases compressive stress nearly NNW-SSE N-S directions. appears be complex. Here, influence Himalayan front evident extent. fault zone some extent similar San Andreas system California. So far energy release concerned, maximum being released form close ranges.