USGS Body-Wave Moment Tensor Solution
NORTHERN XINJIANG, CHINA
12/06/14 21:51:29.92 Epicenter: 42.181 84.257 MW 5.2 USGS MOMENT TENSOR SOLUTION Depth 14 No. of sta: 24 Moment Tensor; Scale 10**16 Nm Mrr= 6.66 Mtt=-6.91 Mpp= 0.25 Mrt=-1.10 Mrp=-0.65 Mtp= 2.03 Principal axes: T Val= 6.86 Plg=81 Azm=127 N 0.65 8 284 P -7.51 4 14 Best Double Couple:Mo=7.2*10**16 NP1:Strike=113 Dip=42 Slip= 103 NP2: 276 49 79
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.