M 4.7 earthquake: Philippine Sea (Naha, Japan) — February 1, 1991

M 4.7 earthquake: Philippine Sea (Naha, Japan) — February 1, 1991. Epicenter 165 km SW of Naha, depth 33 km, 04:46 Local (1991-01-31 19:46 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (165 km SW of Naha, Japan) — 24.864, 126.969

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