USGS Centroid Moment Solution
JAN MAYEN ISLAND REGION
12/08/30 13:43:24.75 Epicenter: 71.451 -10.900 MW 6.7 USGS CENTROID MOMENT TENSOR 12/08/30 13:43:41.40 Centroid: 71.513 -10.198 Depth 10 No. of sta: 118 Moment Tensor; Scale 10**19 Nm Mrr=-0.05 Mtt= 0.94 Mpp=-0.89 Mrt=-0.03 Mrp=-0.18 Mtp= 1.05 Principal axes: T Val= 1.43 Plg= 4 Azm=155 N -0.04 82 33 P -1.39 6 246 Best Double Couple:Mo=1.4*10**19 NP1:Strike= 21 Dip=88 Slip=-173 NP2: 290 83 -2
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.
