M 6.4 - 124 km SE of Gizo, Solomon Islands
- 1983-04-24 09:08:47 (UTC)
- 8.875°S 157.669°E
- 12.4 km depth
ShakeMap
[FS]. FAULT PLANE SOLUTION: P-WAVES NP1:STRIKE=165;DIP=85;SLIP=150 NP2:STRIKE=258;DIP=60;SLIP=6 PRINCIPAL AXES: (T) PLG=24; AZM=117 (P) PLG=17; AZM=215 COMMENT: Moderately well controlled strike-slip fault type mechanism. NP to be designated as the fault plane not determined. MOMENT TENSOR SOLUTION NO OF STA 11 SCALE 10**25 D-CM PRINCIPAL AXES: (T) VAL=3.86; PLG=23; AZM=96 (N) VAL=0.37; PLG=58; AZM=322 (P) VAL=-4.24; PLG=20; AZM=196 BEST DOUBLE COUPLE:Mo=4.0*10**25 NP1:STRIKE=237;DIP=59;SLIP=2 NP2:STRIKE=145;DIP=88;SLIP=148 COMMENT: Best depth =25 km. CENTROID, MOMENT TENSOR SOLUTION HARVARD EVENT-FILE NAME C042483B DATA USED: GDSN L.P. BODY WAVES: 21S, 57C, T=45 MANTLE WAVES: 11S, 25C, T=135 CENTROID LOCATION: ORIGIN TIME 9: 8:54.5 0.2 LAT 8.93S 0.02;LON 157.42E 0.02 DEP 13.9 0.8;HALF-DURATION 6.0 MOMENT TENSOR; SCALE 10**25 D-CM MRR=2.32 0.04; MTT=-0.91 0.04 MFF=-1.41 0.04; MRT=1.60 0.17 MRF=-1.16 0.16; MTF=1.24 0.03 PRINCIPAL AXES: 1.(T) VAL=3.07;PLG=69;AZM=25 2.(N) 0.03; 8; 135 3.(P) -3.10; 20; 228 BEST DOUBLE COUPLE:M0=3.1*10**25 NP1:STRIKE=330;DIP=26;SLIP=107 NP2:Strike=131;Dip=65;Slip=82