USGS Body-Wave Moment Tensor Solution
NEW GUINEA, PAPUA NEW GUINEA
12/03/21 22:15:05.75 Epicenter: -6.205 145.952 MW 6.6 USGS MOMENT TENSOR SOLUTION Depth 117 No. of sta: 42 Moment Tensor; Scale 10**18 Nm Mrr=-6.36 Mtt= 6.49 Mpp=-0.12 Mrt=-4.03 Mrp=-0.53 Mtp=-3.90 Principal axes: T Val= 9.08 Plg=13 Azm=202 N -1.20 19 108 P -7.88 67 325 Best Double Couple:Mo=8.5*10**18 NP1:Strike=315 Dip=36 Slip= -57 NP2: 97 60 -112
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.