USGS Body-Wave Moment Tensor Solution

NEW IRELAND REGION, P.N.G.

13/02/03 11:14:56.94

Epicenter:  -5.074  153.069
MW 5.4

USGS MOMENT TENSOR SOLUTION
Depth  16         No. of sta: 37
Moment Tensor;   Scale 10**17 Nm
  Mrr= 1.04       Mtt=-0.36
  Mpp=-0.68       Mrt=-0.16
  Mrp= 0.97       Mtp= 0.98
 Principal axes:
  T  Val=  1.52  Plg=61  Azm=290
  N        0.25      23      151
  P       -1.77      17       54

Best Double Couple:Mo=1.7*10**17
 NP1:Strike=342 Dip=66 Slip= 115
 NP2:       113     34        46

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