M 4.7 earthquake: Philippine Sea (Naha, Japan) — April 18, 1983

M 4.7 earthquake: Philippine Sea (Naha, Japan) — April 18, 1983. Epicenter 127 km SW of Naha, depth 71 km, 10:34 Local (1983-04-18 01:34 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (127 km SW of Naha, Japan) — 25.23, 127.009

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