USGS Body-Wave Moment Tensor Solution

NORTH ISLAND OF NEW ZEALAND

12/10/16 23:42:54.81

Epicenter: -38.538  176.117
MW 5.7

USGS MOMENT TENSOR SOLUTION
Depth 109         No. of sta: 14
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.51       Mtt= 0.49
  Mpp=-1.00       Mrt= 2.84
  Mrp=-2.71       Mtp=-0.16
 Principal axes:
  T  Val=  4.21  Plg=46  Azm= 35
  N       -0.41      11      136
  P       -3.80      42      236

Best Double Couple:Mo=4.0*10**17
 NP1:Strike= 34 Dip=11 Slip= 168
 NP2:       136     88        79

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