2003/12/06 06:34 Mw=4.70 03/12/11 19:04 Mw=4.16

Figure Caption:
Beach-balls with gray color denote historic focal mechanisms that determined by inverting BATS waveform data since July, 1995, whereas the color beach-balls indicate either the main shock or aftershocks of the December 26, 2006 12:26 event. Both gray and color scales present the corresponding centroid focal depth of each event.