upper crustal seismic anisotropy in the southeastern termination of the zagros mountains and qeshm island

We investigate the upper crustal seismic anisotropy in the southeastern zagros mountains and qeshm island through the shear wave splitting analysis the aftershock records of three local earthquakes; the 2006 tiab earthquake (mw=6) in the north of the main zagros thrust fault, the 2006 fin (mw=5.9) event in se zagros, and the 2005 qeshm island event(mw=5.8). the data come from three temporary local seismic networks that were installed by iiees to study the aftershock activities. we used a total of 1180 aftershocks recorded 1 to 3 months after the main events. for data processing and measurement of splitting parameters (i.e. fast axis azimuths and delay times) we used the automated program mfast.