초록 |
The seismic sequence of Minle--Shandan Ms6.1 earthquake on Oct. 25,2003, is relocated using the dual-difference earthquake location method. The result shows that distribution of aftershocks is in NW direction, consistent with the regional tectonics. The main shock located at southeast end of the range of seismic sequence, and aftershocks are not distributed symmetrically in both side of main shock. It implies that fracturing is from the southeast to northwest and there is K a barrier at southeast of the main shock |