M 4.9 earthquake: North Pacific Ocean (Japan) — March 21, 1980

M 4.9 earthquake: North Pacific Ocean (Japan) — March 21, 1980. Epicenter 389 km S of Hamamatsu, depth 367 km, 13:44 Local (1980-03-21 04:44 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (389 km S, Japan) — 31.255, 138.286

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