M 6.6 - 147 km SW of Hihifo, Tonga

Felt (II) at Apia, Samoa Islands. [FS]. FAULT PLANE SOLUTION: P-WAVES NP1:STRIKE=48;DIP=68;SLIP=-90 NP2:STRIKE=228;DIP=22;SLIP=-90 PRINCIPAL AXES: (T) PLG=23; AZM=138 (P) PLG=67; AZM=318 COMMENT: Poorly controlled normal fault type mechanism. NP1 designated as the fault plane. MOMENT TENSOR SOLUTION NO OF STA 12 SCALE 10**25 D-CM DEPTH 182 PRINCIPAL AXES: (T) VAL=8.57; PLG=14; AZM=123 (N) VAL=-0.55; PLG=12; AZM=216 (P) VAL=-8.02; PLG=71; AZM=344 BEST DOUBLE COUPLE:Mo=8.3*10**25 NP1:STRIKE=197;DIP=32;SLIP=-112 NP2:STRIKE=43;DIP=60;SLIP=-76 CENTROID, MOMENT TENSOR SOLUTION HARVARD EVENT-FILE NAME B060183B DATA USED: GDSN L.P. BODY WAVES: 24S, 61C, T=45 CENTROID LOCATION: ORIGIN TIME 2: 0: 1.9 0.2 LAT 16.93S 0.02;LON 174.39W 0.02 DEP 185.7 0.7;HALF-DURATION 6.8 MOMENT TENSOR; SCALE 10**25 D-CM MRR=-5.42 0.10; MTT=1.79 0.15 MFF=3.63 0.15; MRT=-3.15 0.11 MRF=-3.78 0.11; MTF=2.30 0.14 PRINCIPAL AXES: 1.(T) VAL=7.11;PLG=21;AZM=126 2.(N) 0.25; 3; 217 3.(P) -7.36; 68; 313 BEST DOUBLE COUPLE:M0=7.2*10**25 NP1:STRIKE=211;DIP=24;SLIP=-97 NP2:Strike=38;Dip=66;Slip=-87