USGS Body-Wave Moment Tensor Solution

BALLENY ISLANDS REGION

13/01/22 08:40:51.54

Epicenter: -61.313  154.077
MW 5.4

USGS MOMENT TENSOR SOLUTION
Depth   8         No. of sta: 12
Moment Tensor;   Scale 10**17 Nm
  Mrr= 0.20       Mtt= 1.10
  Mpp=-1.29       Mrt=-0.32
  Mrp=-0.11       Mtp=-0.89
 Principal axes:
  T  Val=  1.45  Plg=12  Azm=197
  N        0.16      76       46
  P       -1.61       7      289

Best Double Couple:Mo=1.5*10**17
 NP1:Strike=334 Dip=77 Slip=   4
 NP2:       243     86       167

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