USGS Body-Wave Moment Tensor Solution

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

12/04/17 07:13:50.06

Epicenter:  -5.470  147.105
MW 6.8

USGS MOMENT TENSOR SOLUTION
Depth 198         No. of sta: 44
Moment Tensor;   Scale 10**19 Nm
  Mrr= 1.68       Mtt=-1.77
  Mpp= 0.10       Mrt= 0.32
  Mrp=-0.94       Mtp= 0.49
 Principal axes:
  T  Val=  2.12  Plg=65  Azm= 87
  N       -0.14      23      291
  P       -1.98       9      197

Best Double Couple:Mo=2.0*10**19
 NP1:Strike=262 Dip=41 Slip=  54
 NP2:       126     58       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