M 7.2 - 58 km S of Lakatoro, Vanuatu

Felt (VI) at Port-Vila and (V) on Malakula. Also felt on Ambrym, Aoba, Efate, Epi, Erromango, Espiritu Santo, Maewo and Pentecost. Complex event observed on broadband displacement seismograms. FAULT PLANE SOLUTION: P-Waves NP1:Strike=184 Dip=80 Slip=145 NP2:Strike=281 Dip=56 Slip=12 Principal Axes: (T) Plg=31 Azm=137 (P) Plg=16 Azm=237 Comment: The focal mechanism is poorly controlled and corresponds to strike-slip faulting with a large reverse component. The preferred fault plane is not determined. RADIATED ENERGY No. of sta: 16 Focal mech. F Energy 7.3+2.0*10**14 Nm MOMENT TENSOR SOLUTION Dep 34 No. of sta: 24 Moment Tensor; Scale 10**19 Nm Mrr=-0.35 Mtt=-0.85 Mff=1.20 Mrt=-0.16 Mrf=-2.63 Mtf=4.28 Principal axes: (T) Val=5.42 Plg=21 Azm=125 (N) Val=-0.62 Plg=59 Azm=353 (P) Val=-4.80 Plg=21 Azm=223 Best Double Couple:Mo=5.1*10**19 NP1:Strike=264 Dip=59 Slip=0 NP2:Strike=174 Dip=90 Slip=149 CENTROID, MOMENT TENSOR (HRV) Data Used: GDSN L.P.B.: 58S,167C M.W.: 56S,142C Centroid Location: Origin Time 02:36: 9.3 0.1 Lat 16.50S FIX;Lon 167.35E FIX Dep 25.0 BDY Half-duration 9.9 Moment Tensor; Scale 10**19 Nm Mrr=0.04 0.02 Mtt=-0.23 0.01 Mff=0.19 0.02 Mrt=-0.93 0.06 Mrf=-4.96 0.07 Mtf=4.39 0.01 Principal Axes: (T) Val=7.14 Plg=33 Azm=125 (N) Val=-1.03 Plg=42 Azm=0 (P) Val=-6.11 Plg=31 Azm=238 Best Double Couple:Mo=6.6*10**19 NP1:Strike=272 Dip=42 Slip=2 NP2:Strike=181 Dip=89 Slip=132