USGS Body-Wave Moment Tensor Solution

SANTA CRUZ ISLANDS

13/02/23 08:59:10.40

Epicenter: -10.639  165.335
MW 5.9

USGS MOMENT TENSOR SOLUTION
Depth  12         No. of sta: 34
Moment Tensor;   Scale 10**17 Nm
  Mrr= 5.86       Mtt= 1.55
  Mpp=-7.41       Mrt=-2.74
  Mrp=-1.15       Mtp=-1.91
 Principal axes:
  T  Val=  7.20  Plg=64  Azm=178
  N        0.82      24       17
  P       -8.01       7      283

Best Double Couple:Mo=7.6*10**17
 NP1:Strike=348 Dip=43 Slip=  53
 NP2:       214     57       120

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