USGS Body-Wave Moment Tensor Solution


13/06/24 22:04:13.53

Epicenter:  10.719  -42.624
MW 6.4

Depth   8         No. of sta: 88
Moment Tensor;   Scale 10**18 Nm
  Mrr=-0.08       Mtt=-0.43
  Mpp= 0.50       Mrt= 0.72
  Mrp= 0.89       Mtp=-4.57
 Principal axes:
  T  Val=  4.63  Plg= 2  Azm=228
  N        0.19      76      327
  P       -4.82      13      138

Best Double Couple:Mo=4.7*10**18
 NP1:Strike=182 Dip=82 Slip= -11
 NP2:       274     79      -172

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