USGS Centroid Moment Solution

KERMADEC ISLANDS, NEW ZEALAND

13/02/18 12:19:19.02

Epicenter: -30.680 -178.150
MW 5.9

USGS CENTROID MOMENT TENSOR
13/02/18 12:19:35.90
Centroid: -30.585 -178.745
Depth  49         No. of sta: 53
Moment Tensor;   Scale 10**17 Nm
  Mrr= 8.26       Mtt=-2.04
  Mpp=-6.22       Mrt= 0.87
  Mrp=-2.77       Mtp=-2.33
 Principal axes:
  T  Val=  8.93  Plg=77  Azm= 59
  N       -1.36      10      200
  P       -7.57       8      292

Best Double Couple:Mo=8.3*10**17
 NP1:Strike= 34 Dip=38 Slip= 107
 NP2:       192     54        77

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