چكيده لاتين :
In this study, the teleseismic body waveform modeling of
the far-field P- and SH-waveforms as well as spectral analysis of
P-waves are used to determine the source parameters of March 14, 1998 Fandoqa earthquake (Ms 6.9). Its epicenter is located southeast of Iran at Kerman province on the Gowk fault system. Previous focal
mechanism solutions indicate motion on right-lateral strike slip faults.
Based on waveform modeling, the results of this study represent a
right-lateral strike slip motion on a NW-SE striking fault with
parameters: Fault plane (strike =158°, dip=54° and the rake of 200°)
and auxiliary plane (strike=58°, dip = 76°, rake =-35°), depth of 4km
and seismic moment of 1.32E+19N.m. The spectral analysis of the
far-field P-wave pulses resulted in a fault length L r-.J 20-26km, stress
drop delta sigma ~ 23 bars and average displacement u~ 1m. In this study, the variant models are also examined to determine the source dimension and it is found that both the Madariaga and Sato-Hirasawa models are more consistent with the surface faulting in this area.
