M 5.3 earthquake: Philippine Sea (Naha, Japan) — March 23, 1981

M 5.3 earthquake: Philippine Sea (Naha, Japan) — March 23, 1981. Epicenter 403 km SW of Naha, depth 33 km, 02:07 Local (1981-03-22 18:07 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (403 km SW of Naha, Japan) — 23.163, 125.504

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