USGS WPhase Moment Solution

m:F:SOUTH ISLAND OF NEW ZEALAND

11/02/21 23:51:42

Epicenter: -43.513  172.438
MW 6.1

USGS/WPHASE CENTROID MOMENT TENSOR
11/02/21 23:51:42.00
Centroid:  -43.513  172.438
Depth  15         No. of sta: 17
Moment Tensor;   Scale 10**19 Nm
  Mrr= 0.06       Mtt= 0.06
  Mpp=-0.12       Mrt= 0.05
  Mrp=-0.05       Mtp=-0.10
 Principal axes:
  T  Val=  0.16  Plg=37  Azm= 28
  N     =  0.01      51      194
  P     = -0.17       6      293

Best Double Couple:Mo=0.2*10**19
 NP1:Strike= 64 Dip=59 Slip= 156
 NP2:       166     70        33

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 form 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