USGS Body-Wave Moment Tensor Solution

SOUTH OF SUMBAWA, INDONESIA

12/11/21 16:46:39.40

Epicenter: -11.374  117.943
MW 5.3

USGS MOMENT TENSOR SOLUTION
Depth  20         No. of sta: 27
Moment Tensor;   Scale 10**17 Nm
  Mrr=-0.93       Mtt= 0.76
  Mpp= 0.17       Mrt=-0.23
  Mrp=-0.25       Mtp=-0.58
 Principal axes:
  T  Val=  1.12  Plg= 2  Azm=211
  N       -0.06      21      120
  P       -1.06      69      306

Best Double Couple:Mo=1.1*10**17
 NP1:Strike=102 Dip=51 Slip=-118
 NP2:       321     47       -61

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