USGS Body-Wave Moment Tensor Solution

SOLOMON ISLANDS

12/07/25 11:20:26.81

Epicenter:  -9.737  159.705
MW 6.3

USGS MOMENT TENSOR SOLUTION
Depth  13         No. of sta: 69
Moment Tensor;   Scale 10**18 Nm
  Mrr= 0.14       Mtt= 0.39
  Mpp=-0.53       Mrt= 2.67
  Mrp= 0.01       Mtp= 1.56
 Principal axes:
  T  Val=  3.30  Plg=38  Azm=338
  N       -0.36      31       96
  P       -2.94      36      213

Best Double Couple:Mo=3.1*10**18
 NP1:Strike= 96 Dip=89 Slip=  59
 NP2:         4     31       178

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