The Panzhihua MS6． 1 earthquake sequence on August 30，2008，which was relocated by the Hypo2000 + HypoDD method using the phase data from the Sichuan and Yunnan Regional Digital Seismic Network，showed that the epicenters distribute in NS，the length of the dense aftershocks’region is about 30km，and the main shock is about 14km in depth． The sequence is separated in layers of 0 ～ 4km and 5 ～ 20km in depth，then the 4 ～ 5km embodies an apparent earthquake absence layer． The cross-section along the fracture’s long axis shows there is a irregular seismic gap in the middle segment of the aftershock region，that is the crack region of the M6 3/4 earthquake in 1955，and this earthquake occurred in the south of the gap． We believed that the Panzhihua MS6． 1 earthquake sequence on August 30，2008 was a result from the residual asperity cracking forced by the stress adjustment of the Wenchuan MS8． 0 earthquake． The other two profiles perpendicular to the long axis show the north segment is more deeper and dips to NW， and this is correspondent to the known Hongge fault．