Figure 1. (a) Topography and major faults of Tibet and adjacent regions (GTOPO30;
Avouac and Tapponnier, 1993;
Tapponnier et al., 2001).
(b) Segmentation and earthquakes of M 
6.0 occurring in the past 70
yr along the Kunlun fault (Landsat Thematic Mapper (TM);
International Seismological Centre, 2001;
Van der Woerd, Meriaux, et al., 2002).
Beach balls show the focal mechanism. From west to east, red lines indicate the
surface rupture of the 1997 Mw 7.6, 2001
Mw 7.8, and 1937 M 7.5 earthquakes,
respectively.