USGS WPhase Moment Solution
HINDU KUSH REGION, AFGHANISTAN
12/12/29 17:50:53.00 Epicenter: 35.697 70.545 MW 5.5 USGS/WPHASE CENTROID MOMENT TENSOR 12/12/29 17:50:53.00 Centroid: 35.797 70.545 Depth 120 No. of sta: 35 Moment Tensor; Scale 10**17 Nm Mrr= 1.41 Mtt=-1.53 Mpp= 0.12 Mrt= 0.94 Mrp= 0.97 Mtp=-0.13 Principal axes: T Val= 2.10 Plg=61 Azm=297 N = -0.20 19 69 P = -1.90 19 166 Best Double Couple:Mo=2.0*10**17 NP1:Strike=286 Dip=31 Slip= 131 NP2: 61 67 68
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.
