USGS/SLU Regional Moment Solution
13/08/24 18:59:05.57 Epicenter: 15.168 -87.575 MW 4.6 USGS/SLU REGIONAL MOMENT TENSOR Depth 15 No. of sta: 11 Moment Tensor; Scale 10**15 Nm Mrr=-4.38 Mtt= 0.08 Mpp= 4.30 Mrt= 1.61 Mrp=-4.33 Mtp= 6.68 Principal axes: T Val= 9.69 Plg=11 Azm=123 N -1.05 43 23 P -8.64 44 224 Best Double Couple:Mo=9.2*10**15 NP1:Strike= 1 Dip=69 Slip=-138 NP2: 253 51 -28
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.