M 4.7 earthquake: North Pacific Ocean (Japan) — February 21, 1982

M 4.7 earthquake: North Pacific Ocean (Japan) — February 21, 1982. Epicenter 288 km N of Naha, depth 40 km, 00:12 Local (1982-02-20 15:12 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (288 km N, Japan) — 28.664, 128.589

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