M 5.1 earthquake: North Pacific Ocean (Japan) — November 20, 1984

M 5.1 earthquake: North Pacific Ocean (Japan) — November 20, 1984. Epicenter 508 km SE of Hamamatsu, depth 69 km, 08:08 Local (1984-11-19 23:08 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (508 km SE, Japan) — 30.549, 139.963

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