USGS WPhase Moment Solution
NEAR N COAST OF PAPUA, INDONESIA
12/ 4/21 1:16:52.00 Epicenter: -1.603 134.274 MW 6.6 USGS/WPHASE CENTROID MOMENT TENSOR 12/ 4/21 1:16:52.00 Centroid: -1.603 134.474 Depth 15 No. of sta: 41 Moment Tensor; Scale 10**19 Nm Mrr=-0.29 Mtt=-0.02 Mpp= 0.31 Mrt= 0.03 Mrp= 0.50 Mtp= 1.02 Principal axes: T Val= 1.28 Plg=14 Azm=308 N = -0.25 60 190 P = -1.02 24 45 Best Double Couple:Mo=1.2*10**19 NP1:Strike= 85 Dip=62 Slip= -7 NP2: 178 83 -151
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.
