USGS/SLU Regional Moment Solution
11/08/22 23:30:20.23 Epicenter: 37.045 -104.778 MW 4.7 USGS/SLU REGIONAL MOMENT TENSOR Depth 3 No. of sta: 49 Moment Tensor; Scale 10**16 Nm Mrr=-1.31 Mtt=-0.13 Mpp= 1.44 Mrt=-0.02 Mrp=-0.26 Mtp=-0.32 Principal axes: T Val= 1.52 Plg= 5 Azm= 79 N -0.19 3 169 P -1.33 84 293 Best Double Couple:Mo=1.4*10**16 NP1:Strike=352 Dip=50 Slip= -86 NP2: 165 40 -95
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.