USGS Body-Wave Moment Tensor Solution
13/08/24 08:40:28.32 Epicenter: -22.722 -175.188 MW 5.8 USGS MOMENT TENSOR SOLUTION Depth 5 No. of sta: 36 Moment Tensor; Scale 10**17 Nm Mrr= 3.14 Mtt= 0.06 Mpp=-3.20 Mrt= 2.45 Mrp= 5.51 Mtp=-1.45 Principal axes: T Val= 6.65 Plg=60 Azm=296 N 0.60 2 203 P -7.25 30 112 Best Double Couple:Mo=7.0*10**17 NP1:Strike= 24 Dip=75 Slip= 92 NP2: 197 15 83
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.