USGS Body-Wave Moment Tensor Solution


13/02/25 02:59:42.13

Epicenter: -15.424 -176.376
MW 5.4

Depth  10         No. of sta: 13
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.73       Mtt= 0.53
  Mpp=-1.26       Mrt=-0.51
  Mrp= 0.07       Mtp= 0.58
 Principal axes:
  T  Val=  1.19  Plg=46  Azm=168
  N        0.26      43      337
  P       -1.45       6       72

Best Double Couple:Mo=1.3*10**17
 NP1:Strike=199 Dip=54 Slip= 147
 NP2:       310     64        40

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