USGS Body-Wave Moment Tensor Solution

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

13/04/04 14:10:15.97

Epicenter:  -5.589  147.216
MW 5.3

USGS MOMENT TENSOR SOLUTION
Depth 175         No. of sta:  9
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.32       Mtt=-0.89
  Mpp= 0.57       Mrt= 0.50
  Mrp=-0.32       Mtp=-0.53
 Principal axes:
  T  Val=  1.06  Plg=34  Azm= 65
  N        0.11      52      276
  P       -1.17      15      166

Best Double Couple:Mo=1.1*10**17
 NP1:Strike=211 Dip=54 Slip=  15
 NP2:       112     78       143

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