M 7.7 earthquake: Philippine Sea (Naha, Japan) — June 10, 1938

M 7.7 earthquake: Philippine Sea (Naha, Japan) — June 10, 1938. Epicenter 266 km SW of Naha, depth 20 km, 18:53 Local (1938-06-10 09:53 UTC). Shaking felt by ~69.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (266 km SW of Naha, Japan) — 25.125, 125.308

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