USGS Centroid Moment Solution

NEW BRITAIN REGION, P.N.G.

12/12/15 19:30:02.34

Epicenter:  -4.701  153.002
MW 6.1

USGS CENTROID MOMENT TENSOR
12/12/15 19:30:20.50
Centroid:  -4.777  152.872
Depth  55         No. of sta: 75
Moment Tensor;   Scale 10**18 Nm
  Mrr= 1.52       Mtt=-1.41
  Mpp=-0.11       Mrt= 0.57
  Mrp= 0.22       Mtp= 0.15
 Principal axes:
  T  Val=  1.66  Plg=76  Azm=324
  N       -0.14       9       93
  P       -1.53      10      185

Best Double Couple:Mo=1.6*10**18
 NP1:Strike= 87 Dip=56 Slip=  80
 NP2:       285     35       105

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