M 6.5 - south of the Fiji Islands

Depth from broadband displacement seismograms. FAULT PLANE SOLUTION: P-Waves NP1:Strike=358 Dip=84 Slip=-150 NP2:Strike=265 Dip=60 Slip=-7 Principal Axes: (T) Plg=16 Azm=128 (P) Plg=25 Azm=225 Comment: The focal mechanism is moderately well controlled and corresponds to strike-slip faulting with a moderate normal component. The preferred fault plane is not determined. RADIATED ENERGY No. of sta: 9 Focal mech. F Energy 3.0+1.0*10**13 Nm MOMENT TENSOR SOLUTION Dep 198 No. of sta: 18 Moment Tensor; Scale 10**18 Nm Mrr=-2.05 Mtt=-1.11 Mff=3.17 Mrt=1.72 Mrf=-2.81 Mtf=3.47 Principal axes: (T) Val=5.50 Plg=14 Azm=114 (N) Val=0.07 Plg=46 Azm=10 (P) Val=-5.57 Plg=41 Azm=217 Best Double Couple:Mo=5.5*10**18 NP1:Strike=247 Dip=51 Slip=-22 NP2:Strike=351 Dip=73 Slip=-139 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 27S, 72C Centroid Location: Origin Time 17:23: 0.3 0.2 Lat 23.84S 0.02 Lon 177.28W 0.01 Dep 202.9 0.7 Half-duration 6.1 Moment Tensor; Scale 10**18 Nm Mrr=-0.80 0.04 Mtt=-2.64 0.07 Mff=3.44 0.07 Mrt=1.47 0.04 Mrf=-1.92 0.04 Mtf=3.05 0.06 Principal Axes: (T) Val=4.98 Plg=13 Azm=109 (N) Val=0.01 Plg=59 Azm=357 (P) Val=-4.99 Plg=27 Azm=206 Best Double Couple:Mo=5.0*10**18 NP1:Strike=245 Dip=61 Slip=-11 NP2:Strike=340 Dip=80 Slip=-151