M 7.4 - 83 km WNW of Noshiro, Japan

At least 104 people killed, some injured, and extensive damage to dwellings, roads, and vessels caused by earthquake and a tsunami along the Japan Sea coast from southern Hokkaido to the Niigata area, Honshu. Many of the casualties and much of the damage occurred on the Oga Peninsula. Tsunami damage occurred as far away as Yamaguchi Prefecture in southwestern Honshu, along the Japan Sea coast of USSR, and along the eastern and southern coasts of South Korea, where 3 additional people were killed. Felt (V JMA) at Akita. Felt on Hokkaido and throughout northern and central Honshu. Estimated tsunami heights were 14 meters at Minehama, Honshu, 2-6 meters along southern Hokkaido and northern Honshu, up to 8 meters along the coast of USSR, and 4 meters along the coast of South Korea. [FS]. FAULT PLANE SOLUTION: P-WAVES NP1:STRIKE=168;DIP=58;SLIP=90 NP2:STRIKE=348;DIP=32;SLIP=90 PRINCIPAL AXES: (T) PLG=77; AZM=78 (P) PLG=13; AZM=258 COMMENT: Moderately well controlled reverse fault type mechanism. NP to be designated as the fault plane not determined. MOMENT TENSOR SOLUTION NO OF STA 13 SCALE 10**27 D-CM DEPTH 13 PRINCIPAL AXES: (T) VAL=1.25; PLG=72; AZM=50 (N) VAL=-0.08; PLG=16; AZM=201 (P) VAL=-1.17; PLG=8; AZM=293 BEST DOUBLE COUPLE:Mo=1.2*10**27 NP1:STRIKE=41;DIP=39;SLIP=115 NP2:STRIKE=190;DIP=55;SLIP=71 CENTROID, MOMENT TENSOR SOLUTION HARVARD EVENT-FILE NAME C052683A DATA USED: GDSN L.P. BODY WAVES: 24S, 66C, T=45 CENTROID LOCATION: ORIGIN TIME 3: 0:18.3 0.2 LAT 40.44N 0.02;LON 138.87E 0.04 DEP 12.6 1.0;HALF-DURATION 20.0 MOMENT TENSOR; SCALE 10**27 D-CM MRR=3.96 0.08; MTT=-0.85 0.08 MFF=-3.11 0.13; MRT=-1.01 0.20 MRF=-2.50 0.30; MTF=-0.81 0.07 PRINCIPAL AXES: 1.(T) VAL=4.85;PLG=72;AZM=114 2.(N) -0.60; 2; 19 3.(P) -4.25; 18; 289 BEST DOUBLE COUPLE:M0=4.6*10**27 NP1:STRIKE=16;DIP=27;SLIP=86 NP2:Strike=200;Dip=63;Slip=92