M 4.8 earthquake: Philippine Sea (Surigao, Philippines) — April 13, 1981

M 4.8 earthquake: Philippine Sea (Surigao, Philippines) — April 13, 1981. Epicenter 95 km NE of Surigao, depth 70 km, 20:52 Local (1981-04-13 12:52 UTC). Shaking felt by ~1.2M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (95 km NE of Surigao, Philippines) — 10.559, 125.854

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