USGS WPhase Moment Solution


12/09/22  3:52:26

Epicenter:  38.294   22.801
MW 5.0

12/09/22 03:52:26.00
Centroid:   38.194   22.419
Depth  15         No. of sta: 17
Moment Tensor;   Scale 10**16 Nm
  Mrr=-2.91       Mtt= 2.64
  Mpp= 0.27       Mrt=-1.89
  Mrp= 1.24       Mtp=-0.87
 Principal axes:
  T  Val=  3.66  Plg=18  Azm=201
  N     =  0.06       7      293
  P     = -3.72      69       44

Best Double Couple:Mo=3.7*10**16
 NP1:Strike=279 Dip=27 Slip=-106
 NP2:       117     64       -81

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

Details on the W-phase inversion algorithm.