M 5.3 earthquake: Philippine Sea (General Santos, Philippines) — May 20, 1981

M 5.3 earthquake: Philippine Sea (General Santos, Philippines) — May 20, 1981. Epicenter 166 km E of General Santos, depth 107 km, 01:11 Local (1981-05-19 17:11 UTC). Shaking felt by ~2.3M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (166 km E of General Santos, Philippines) — 5.61, 126.59

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