USGS Body-Wave Moment Tensor Solution

SANTA CRUZ ISLANDS

13/02/06 11:53:54.47

Epicenter: -11.269  165.756
MW 6.0

USGS MOMENT TENSOR SOLUTION
Depth   8         No. of sta: 52
Moment Tensor;   Scale 10**18 Nm
  Mrr=-0.36       Mtt= 0.02
  Mpp= 0.34       Mrt=-1.37
  Mrp= 0.26       Mtp=-0.18
 Principal axes:
  T  Val=  1.31  Plg=39  Azm=203
  N        0.24      10      105
  P       -1.56      49        4

Best Double Couple:Mo=1.5*10**18
 NP1:Strike=104 Dip=85 Slip=-100
 NP2:       347     11       -28

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