USGS Centroid Moment Solution

NEW IRELAND REGION, P.N.G.

13/04/23 23:14:42.27

Epicenter:  -3.925  152.114
MW 6.5

USGS CENTROID MOMENT TENSOR
13/04/23 23:15:02.79
Centroid:  -3.244  152.014
Depth  10         No. of sta:146
Moment Tensor;   Scale 10**18 Nm
  Mrr= 0.49       Mtt= 6.23
  Mpp=-6.72       Mrt=-3.86
  Mrp= 2.10       Mtp= 0.98
 Principal axes:
  T  Val=  8.17  Plg=27  Azm=180
  N       -0.57      57      320
  P       -7.60      18       81

Best Double Couple:Mo=7.9*10**18
 NP1:Strike=218 Dip=57 Slip= 174
 NP2:       312     85        33

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