USGS Body-Wave Moment Tensor Solution

SOUTH SANDWICH ISLANDS REGION

13/03/19 03:29:00.45

Epicenter: -58.929  -24.482
MW 5.9

USGS MOMENT TENSOR SOLUTION
Depth  26         No. of sta: 34
Moment Tensor;   Scale 10**17 Nm
  Mrr= 6.04       Mtt=-7.22
  Mpp= 1.18       Mrt=-0.50
  Mrp= 3.08       Mtp= 3.25
 Principal axes:
  T  Val=  7.60  Plg=62  Azm=279
  N        0.88      27      114
  P       -8.49       6       20

Best Double Couple:Mo=8.1*10**17
 NP1:Strike=313 Dip=57 Slip= 123
 NP2:        84     46        51

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