Historic Earthquakes

Magnitude 7.5 OAXACA, MEXICO
1999 September 30 16:31:15 UTC

 Dep  45           No. of sta: 37
 Moment Tensor;   Scale 10**20 Nm
   Mrr=-1.09       Mtt= 1.44
   Mff=-0.34       Mrt= 0.29
   Mrf=-0.51       Mtf=-0.41
  Principal axes:
   T  Val=  1.59  Plg= 9  Azm= 14
   N       -0.23      24      108
   P       -1.35      64      266
 Best Double Couple:Mo=1.5*10**20
  NP1:Strike= 78 Dip=42 Slip=-128
  NP2:       305     58       -61

Moment Tensor Solution