M 4.9 earthquake: North Pacific Ocean (Japan) — April 12, 1983

M 4.9 earthquake: North Pacific Ocean (Japan) — April 12, 1983. Epicenter 306 km S of Kanoya, depth 51 km, 18:52 Local (1983-04-12 09:52 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (306 km S, Japan) — 28.717, 130.079

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