USGS Centroid Moment Solution

SOUTH OF KERMADEC ISLANDS

11/10/07 08:58:29.75

Epicenter: -32.389 -178.902
MW 6.1

USGS CENTROID MOMENT TENSOR
11/10/07 08:58:50.20
Centroid: -31.922 -178.987
Depth  52         No. of sta: 19
Moment Tensor;   Scale 10**18 Nm
  Mrr= 1.97       Mtt=-0.41
  Mpp=-1.56       Mrt=-0.10
  Mrp= 0.29       Mtp=-0.70
 Principal axes:
  T  Val=  2.01  Plg=83  Azm=233
  N       -0.10       6       24
  P       -1.90       3      115

Best Double Couple:Mo=2.0*10**18
 NP1:Strike= 19 Dip=49 Slip=  82
 NP2:       211     42        99

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