USGS Body-Wave Moment Tensor Solution

SOUTH OF FIJI ISLANDS

13/05/23 17:19:05.06

Epicenter: -23.000 -177.267
MW 7.4

USGS MOMENT TENSOR SOLUTION
Depth 177         No. of sta: 98
Moment Tensor;   Scale 10**20 Nm
  Mrr=-0.53       Mtt=-0.09
  Mpp= 0.63       Mrt=-0.43
  Mrp=-1.34       Mtp= 0.14
 Principal axes:
  T  Val=  1.58  Plg=34  Azm=105
  N       -0.11       3      197
  P       -1.48      56      292

Best Double Couple:Mo=1.5*10**20
 NP1:Strike=181 Dip=12 Slip=-106
 NP2:        17     79       -87

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