USGS Centroid Moment Solution

EASTERN NEW GUINEA REG., P.N.G.

12/04/17 07:13:50.08

Epicenter:  -5.474  147.097
MW 6.8

USGS CENTROID MOMENT TENSOR
12/04/17 07:14:00.79
Centroid:  -5.942  147.133
Depth 189         No. of sta: 117
Moment Tensor;   Scale 10**19 Nm
  Mrr= 1.69       Mtt=-2.14
  Mpp= 0.45       Mrt= 0.22
  Mrp=-0.73       Mtp= 0.66
 Principal axes:
  T  Val=  2.03  Plg=65  Azm= 93
  N        0.31      24      287
  P       -2.34       6      195

Best Double Couple:Mo=2.2*10**19
 NP1:Strike=126 Dip=55 Slip= 120
 NP2:       260     45        54

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