M 6.7 - 120 km SSE of Pondaguitan, Philippines
- 1983-03-15 19:58:30 (UTC)
- 5.346°N 126.566°E
- 41.0 km depth
ShakeMap
[FS]. FAULT PLANE SOLUTION: P-WAVES NP1:STRIKE=20;DIP=70;SLIP=115 NP2:STRIKE=146;DIP=32;SLIP=41 PRINCIPAL AXES: (T) PLG=58; AZM=324 (P) PLG=21; AZM=91 COMMENT: Poorly controlled reverse fault type mechanism with a moderate amount of strike-slip. NP2 designated as the fault plane. MOMENT TENSOR SOLUTION NO OF STA 8 SCALE 10**26 D-CM PRINCIPAL AXES: (T) VAL=1.13; PLG=48; AZM=312 (N) VAL=-0.05; PLG=36; AZM=167 (P) VAL=-1.08; PLG=18; AZM=63 BEST DOUBLE COUPLE:Mo=1.1*10**26 NP1:STRIKE=112;DIP=42;SLIP=28 NP2:STRIKE=1;DIP=72;SLIP=129 COMMENT: Best depth =21 km. CENTROID, MOMENT TENSOR SOLUTION HARVARD EVENT-FILE NAME C031583C DATA USED: GDSN L.P. BODY WAVES: 20S, 60C, T=45 MANTLE WAVES: 13S, 29C, T=135 CENTROID LOCATION: ORIGIN TIME 19:58:36.3 0.2 LAT 5.60N 0.02;LON 126.96E 0.02 DEP 21.2 0.8;HALF-DURATION 6.8 MOMENT TENSOR; SCALE 10**25 D-CM MRR=5.09 0.08; MTT=0.61 0.06 MFF=-5.70 0.07; MRT=3.08 0.23 MRF=2.17 0.21; MTF=-0.18 0.06 PRINCIPAL AXES: 1.(T) VAL=6.94;PLG=63;AZM=341 2.(N) -0.72; 23; 193 3.(P) -6.22; 13; 97 BEST DOUBLE COUPLE:M0=6.6*10**25 NP1:STRIKE=160;DIP=38;SLIP=50 NP2:Strike=26;Dip=62;Slip=117