USGS/SLU Regional Moment Solution
13/01/20 22:03:04.16 Epicenter: 63.289 -151.359 MW 4.1 USGS/SLU REGIONAL MOMENT TENSOR Depth 16 No. of sta: 46 Moment Tensor; Scale 10**15 Nm Mrr= 0.20 Mtt=-1.35 Mpp= 1.15 Mrt= 0.03 Mrp= 0.63 Mtp=-1.18 Principal axes: T Val= 1.82 Plg=20 Azm=250 N 0.03 69 47 P -1.85 8 157 Best Double Couple:Mo=1.8*10**15 NP1:Strike= 25 Dip=82 Slip= 20 NP2: 292 71 171
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.
