Strong motion records in near-source area from the 2011 Tohoku earthquake show several isolated wave-packets arriving from different origins on the source fault. The source model is estimated from the forward modeling, comparing short-period ground motions simulated using the empirical Green’s functions with those observed. The final model has five strong motion generation areas (SMGAs) located west of the hypocenter and along the down-dip edge of the source fault. Impulsive waves with high acce
Strong motion records in near-source area from the 2011 Tohoku earthquake show several isolated wave-packets arriving from different origins on the source fault. The source model is estimated from the forward modeling, comparing short-period ground motions simulated using the empirical Green’s functions with those observed. The final model has five strong motion generation areas (SMGAs) located west of the hypocenter and along the down-dip edge of the source fault. Impulsive waves with high acce