USGS Body-Wave Moment Tensor Solution


13/01/01 07:35:50.50

Epicenter:  46.892  151.096
MW 5.1

Depth   8         No. of sta: 15
Moment Tensor;   Scale 10**16 Nm
  Mrr= 3.55       Mtt= 0.99
  Mpp=-4.54       Mrt= 2.30
  Mrp=-1.62       Mtp=-2.56
 Principal axes:
  T  Val=  5.64  Plg=53  Azm= 26
  N       -0.04      37      196
  P       -5.60       5      290

Best Double Couple:Mo=5.6*10**16
 NP1:Strike=170 Dip=59 Slip=  46
 NP2:        52     51       140

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