USGS Body-Wave Moment Tensor Solution

CENTRAL MID-ATLANTIC RIDGE

13/02/18 03:40:49.26

Epicenter:   5.594  -32.943
MW 5.6

USGS MOMENT TENSOR SOLUTION
Depth   6         No. of sta: 19
Moment Tensor;   Scale 10**17 Nm
  Mrr=-0.33       Mtt=-2.54
  Mpp= 2.87       Mrt=-0.87
  Mrp=-0.09       Mtp=-1.04
 Principal axes:
  T  Val=  3.07  Plg= 1  Azm=259
  N       -0.05      72      165
  P       -3.02      18      350

Best Double Couple:Mo=3.0*10**17
 NP1:Strike=126 Dip=78 Slip=-166
 NP2:        33     76       -12

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