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

Moment Tensor Solution
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.

Moment Tensor Solution

Details on the W-phase inversion algorithm.