M 6.0 - 108 km N of Hihifo, Tonga
- 1990-09-23 06:50:33 (UTC)
- 14.989°S 173.632°W
- 33.0 km depth
CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 18S, 44C Centroid Location: Origin Time 06:50:37.5 0.2 Lat 14.89S 0.03 Lon 173.55W 0.02 Dep 15.0 FIX Half-duration 3.5 Moment Tensor; Scale 10**17 Nm Mrr=0.83 0.09 Mtt=2.99 0.12 Mff=-3.82 0.14 Mrt=1.73 0.31 Mrf=7.79 0.34 Mtf=4.59 0.09 Principal Axes: (T) Val=9.44 Plg=38 Azm=315 (N) Val=0.76 Plg=35 Azm=192 (P) Val=-10.20 Plg=33 Azm=75 Best Double Couple:Mo=9.8*10**17 NP1:Strike=109 Dip=35 Slip=5 NP2:Strike=14 Dip=87 Slip=125