M 5.0 earthquake: North Pacific Ocean (Japan) — December 11, 1977

M 5.0 earthquake: North Pacific Ocean (Japan) — December 11, 1977. Epicenter 316 km S of Hamamatsu, depth 33 km, 00:19 Local (1977-12-10 15:19 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (316 km S, Japan) — 32.039, 138.858

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