USGS Body-Wave Moment Tensor Solution
SOUTH OF FIJI ISLANDS
11/07/29 07:42:23.26 Epicenter: -23.651 179.822 MW 6.7 USGS MOMENT TENSOR SOLUTION Depth 523 No. of sta: 70 Moment Tensor; Scale 10**19 Nm Mrr= 1.30 Mtt=-1.28 Mpp=-0.01 Mrt=-0.75 Mrp=-0.58 Mtp=-0.20 Principal axes: T Val= 1.66 Plg=68 Azm=126 N -0.09 13 252 P -1.56 17 346 Best Double Couple:Mo=1.6*10**19 NP1:Strike= 96 Dip=30 Slip= 117 NP2: 245 63 75
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.