USGS Body-Wave Moment Tensor Solution

VANUATU

11/08/20 16:54:58.34

Epicenter: -18.417  168.075
MW 7.0

USGS MOMENT TENSOR SOLUTION
Depth  31         No. of sta: 50
Moment Tensor;   Scale 10**19 Nm
  Mrr= 2.98       Mtt= 1.08
  Mpp=-4.06       Mrt= 0.52
  Mrp=-0.93       Mtp= 1.92
 Principal axes:
  T  Val=  3.15  Plg=79  Azm= 26
  N        1.69       8      160
  P       -4.84       8      251

Best Double Couple:Mo=4.3*10**19
 NP1:Strike=350 Dip=38 Slip= 103
 NP2:       155     53        80

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