M 6.1 earthquake: Philippine Sea (Surigao, Philippines) — May 24, 1931

M 6.1 earthquake: Philippine Sea (Surigao, Philippines) — May 24, 1931. Epicenter 55 km N of Surigao, depth 15 km, 08:13 Local (1931-05-24 00:13 UTC). Shaking felt by ~28.3M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (55 km N of Surigao, Philippines) — 10.267, 125.616

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