USGS Body-Wave Moment Tensor Solution
HINDU KUSH REGION, AFGHANISTAN
12/06/11 05:29:11.40 Epicenter: 36.056 69.302 MW 5.6 USGS MOMENT TENSOR SOLUTION Depth 16 No. of sta: 26 Moment Tensor; Scale 10**17 Nm Mrr= 0.17 Mtt= 1.76 Mpp=-1.93 Mrt=-1.96 Mrp=-0.20 Mtp=-1.50 Principal axes: T Val= 3.34 Plg=30 Azm=195 N -0.57 53 55 P -2.77 20 297 Best Double Couple:Mo=3.1*10**17 NP1:Strike=339 Dip=53 Slip= 8 NP2: 244 83 143
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.