USGS Body-Wave Moment Tensor Solution
NEAR N COAST OF PAPUA, INDONESIA
12/04/21 01:16:56.17 Epicenter: -1.625 134.204 MW 6.6 USGS MOMENT TENSOR SOLUTION Depth 17 No. of sta: 22 Moment Tensor; Scale 10**18 Nm Mrr=-0.17 Mtt=-0.45 Mpp= 0.62 Mrt= 0.52 Mrp=-0.59 Mtp= 8.73 Principal axes: T Val= 8.83 Plg= 0 Azm=133 N -0.10 85 38 P -8.73 5 223 Best Double Couple:Mo=8.8*10**18 NP1:Strike=268 Dip=86 Slip= -3 NP2: 358 87 -176
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.