USGS Centroid Moment Solution

 11/02/10 14:39:28.60
 CELEBES SEA                     
 Epicenter:   4.131  122.965
 MW 6.5

 11/02/10 14:39:29.59
 Centroid:    3.513  123.342
 Depth 440         No. of sta: 74
 Moment Tensor;   Scale 10**18 Nm
   Mrr=-4.20       Mtt= 0.72
   Mpp= 3.48       Mrt=-1.24
   Mrp=-4.21       Mtp= 2.92
  Principal axes:
   T  Val=  6.95  Plg=21  Azm=119
   N       -0.89      11       25
   P       -6.06      66      269

 Best Double Couple:Mo=6.5*10**18
  NP1:Strike= 20 Dip=67 Slip=-102
  NP2:       228     26       -64

Moment Tensor Solution
The figure above shows a visual representation of the faulting process derived from the estimated moment tensor. Shaded areas show quadrants of the focal sphere in which the P-wave first-motions are away form the source, and unshaded areas show quadrants in which the P-wave first-motions are toward the source. The two circles represent the axis of maximum compressional strain resulting from the earthquake (in black, called the "P-axis") and the axis of maximum extensional strain (in white, called the "T-axis").

Moment Tensor Solution