USGS Body-Wave Moment Tensor Solution

SOUTH OF KERMADEC ISLANDS

13/01/08 21:26:55.24

Epicenter: -34.569  179.161
MW 5.6

USGS MOMENT TENSOR SOLUTION
Depth  10         No. of sta: 28
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.98       Mtt=-3.59
  Mpp= 2.61       Mrt=-0.34
  Mrp= 0.70       Mtp= 1.27
 Principal axes:
  T  Val=  3.05  Plg=17  Azm=280
  N        0.83      72      119
  P       -3.88       6       12

Best Double Couple:Mo=3.5*10**17
 NP1:Strike= 57 Dip=74 Slip=   8
 NP2:       325     82       164

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