M 6.0 - South Sandwich Islands region

FAULT PLANE SOLUTION: P-Waves NP1:Strike=305 Dip=83 Slip=90 NP2:Strike=125 Dip=7 Slip=90 Principal Axes: (T) Plg=52 Azm=215 (P) Plg=38 Azm=35 Comment: The focal mechanism is poorly controlled and corresponds to reverse faulting. The preferred fault plane is NP2. MOMENT TENSOR SOLUTION Dep 102 No. of sta: 7 Moment Tensor; Scale 10**18 Nm Mrr=0.09 Mtt=-0.03 Mff=-0.06 Mrt=-0.82 Mrf=0.69 Mtf=0.05 Principal axes: (T) Val=1.07 Plg=47 Azm=219 (N) Val=0.01 Plg=1 Azm=310 (P) Val=-1.08 Plg=42 Azm=41 Best Double Couple:Mo=1.1*10**18 NP1:Strike=156 Dip=3 Slip=116 NP2:Strike=310 Dip=87 Slip=89 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 19S, 43C Centroid Location: Origin Time 04:21:26.7 0.2 Lat 56.57S 0.03 Lon 26.37W 0.05 Dep 112.8 1.8 Half-duration 3.7 Moment Tensor; Scale 10**17 Nm Mrr=-1.72 0.27 Mtt=7.60 0.44 Mff=-5.88 0.50 Mrt=-8.45 0.26 Mrf=5.54 0.24 Mtf=1.95 0.38 Principal Axes: (T) Val=12.67 Plg=32 Azm=185 (N) Val=-0.57 Plg=34 Azm=299 (P) Val=-12.10 Plg=40 Azm=63 Best Double Couple:Mo=1.2*10**18 NP1:Strike=219 Dip=34 Slip=-171 NP2:Strike=122 Dip=85 Slip=-56