USGS Body-Wave Moment Tensor Solution
SOUTHWESTERN SIBERIA, RUSSIA
11/12/27 15:21:56.91 Epicenter: 51.845 95.913 MW 6.6 USGS MOMENT TENSOR SOLUTION Depth 16 No. of sta: 105 Moment Tensor; Scale 10**19 Nm Mrr= 0.01 Mtt=-0.52 Mpp= 0.50 Mrt= 0.05 Mrp=-0.02 Mtp= 0.99 Principal axes: T Val= 1.11 Plg= 1 Azm=301 N 0.01 87 44 P -1.12 3 211 Best Double Couple:Mo=1.1*10**19 NP1:Strike=256 Dip=89 Slip= -2 NP2: 346 88 -179
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.