M 4.8 earthquake: Philippine Sea (Surigao, Philippines) — May 3, 1981

M 4.8 earthquake: Philippine Sea (Surigao, Philippines) — May 3, 1981. Epicenter 28 km E of Surigao, depth 118 km, 20:41 Local (1981-05-03 12:41 UTC). Shaking felt by ~836K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (28 km E of Surigao, Philippines) — 9.711, 125.734

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