USGS Body-Wave Moment Tensor Solution

SANTA CRUZ ISLANDS

13/02/23 14:31:05.69

Epicenter: -11.720  165.039
MW 5.6

USGS MOMENT TENSOR SOLUTION
Depth   6         No. of sta: 29
Moment Tensor;   Scale 10**17 Nm
  Mrr=-3.18       Mtt= 0.64
  Mpp= 2.53       Mrt=-0.79
  Mrp= 1.25       Mtp=-0.78
 Principal axes:
  T  Val=  3.14  Plg=13  Azm=249
  N        0.39       4      158
  P       -3.53      76       50

Best Double Couple:Mo=3.4*10**17
 NP1:Strike=155 Dip=58 Slip= -95
 NP2:       344     32       -82

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