Table 1

Centroid Moment Tensors (CMT) of Five Clusters

ClusterNumber of EventsMean rmsCMTs
M11M22M33M23M13M12
11200.2210.4100−0.1750−0.2747−0.39150.04450.4557
21120.1300.22240.2572−0.5911−0.25830.23140.3836
31060.2740.3688−0.42240.0661−0.2056−0.15970.5223
4520.220−0.3519−0.15960.4556−0.38680.27840.3073
5500.184−0.23550.4940−0.3239−0.31250.32500.3073

Number of events is the number of earthquakes in individual clusters; mean rms is the root mean square averaged over earthquakes in individual clusters. Components of the CMTs are expressed in the Cartesian coordinate system with x1–N, x2–E, x3–down.