USGS WPhase Moment Solution
NEW GUINEA, PAPUA NEW GUINEA
12/ 3/21 22:15:5.00 Epicenter: -6.244 145.959 MW 6.6 USGS/WPHASE CENTROID MOMENT TENSOR 12/ 3/21 22:15: 5.00 Centroid: -6.244 145.858 Depth 120 No. of sta: 32 Moment Tensor; Scale 10**18 Nm Mrr=-5.78 Mtt= 7.34 Mpp=-1.56 Mrt=-4.93 Mrp=-0.97 Mtp=-4.01 Principal axes: T Val= 10.06 Plg=15 Azm=197 N = -1.84 24 100 P = -8.23 60 316 Best Double Couple:Mo=9.3*10**18 NP1:Strike=319 Dip=37 Slip= -45 NP2: 88 65 -117
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.
