USGS Centroid Moment Solution
NEAR N COAST OF NEW GUINEA, PNG.
11/07/31 23:38:58.97 Epicenter: -3.510 144.855 MW 6.6 USGS CENTROID MOMENT TENSOR 11/07/31 23:39:19.79 Centroid: -3.204 144.788 Depth 10 No. of sta: 78 Moment Tensor; Scale 10**19 Nm Mrr=-0.12 Mtt=-0.03 Mpp= 0.15 Mrt=-0.16 Mrp= 0.02 Mtp= 1.04 Principal axes: T Val= 1.11 Plg= 4 Azm=133 N -0.10 80 250 P -1.01 9 42 Best Double Couple:Mo=1.1*10**19 NP1:Strike= 87 Dip=87 Slip= -9 NP2: 178 81 -177
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.
