USGS Body-Wave Moment Tensor Solution


12/12/17 09:16:30.67

Epicenter:  -0.677  123.811
MW 6.1

Depth  29         No. of sta: 40
Moment Tensor;   Scale 10**18 Nm
  Mrr=-0.17       Mtt= 1.81
  Mpp=-1.65       Mrt=-0.01
  Mrp= 0.73       Mtp= 0.83
 Principal axes:
  T  Val=  2.01  Plg= 4  Azm=346
  N        0.09      69      245
  P       -2.10      20       78

Best Double Couple:Mo=2.1*10**18
 NP1:Strike=120 Dip=73 Slip= -12
 NP2:       214     79      -162

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