USGS WPhase Moment Solution
NEVADA
13/02/13 0:10:13 Epicenter: 38.032 -118.038 MW 5.2 USGS/WPHASE CENTROID MOMENT TENSOR 13/02/13 00:10:13.00 Centroid: 38.032 -118.038 Depth 11 No. of sta: 72 Moment Tensor; Scale 10**16 Nm Mrr=-0.81 Mtt=-0.32 Mpp= 1.13 Mrt= 1.19 Mrp=-3.98 Mtp= 7.00 Principal axes: T Val= 8.02 Plg=15 Azm=128 N = 0.34 59 11 P = -8.37 25 225 Best Double Couple:Mo=8.2*10**16 NP1:Strike=265 Dip=60 Slip= -8 NP2: 359 83 -150
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.
