USGS Centroid Moment Solution
HINDU KUSH REGION, AFGHANISTAN
12/06/11 05:29:11.40 Epicenter: 36.056 69.302 MW 5.7 USGS CENTROID MOMENT TENSOR 12/06/11 05:29:25.40 Centroid: 36.178 69.043 Depth 10 No. of sta: 34 Moment Tensor; Scale 10**17 Nm Mrr= 1.46 Mtt= 2.44 Mpp=-3.90 Mrt=-1.27 Mrp=-1.74 Mtp=-1.19 Principal axes: T Val= 3.31 Plg=34 Azm=180 N 1.42 50 35 P -4.73 18 283 Best Double Couple:Mo=4.0*10**17 NP1:Strike=228 Dip=79 Slip= 141 NP2: 326 52 14
The figure above shows a visual representation of the style of faulting (focal mechanism) derived from the estimated moment tensor. Shaded areas show quadrants of the focal sphere in which the P-wave first-motions are away from the source, and unshaded areas show quadrants in which the P-wave first-motions are toward the source. The dots represent the axis of maximum compressional strain (in black, called the "P-axis") and the axis of maximum extensional strain (in white, called the "T-axis") resulting from the earthquake.