USGS Body-Wave Moment Tensor Solution
NEAR N COAST OF NEW GUINEA, PNG.
11/07/31 23:38:58.97 Epicenter: -3.510 144.855 MW 6.5 USGS MOMENT TENSOR SOLUTION Depth 11 No. of sta: 53 Moment Tensor; Scale 10**18 Nm Mrr= 0.55 Mtt=-1.05 Mpp= 0.50 Mrt= 1.03 Mrp= 0.04 Mtp= 6.59 Principal axes: T Val= 6.45 Plg= 7 Azm=312 N 0.54 81 92 P -6.99 6 221 Best Double Couple:Mo=6.7*10**18 NP1:Strike= 87 Dip=89 Slip= 9 NP2: 357 81 179
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.
