M 4.9 earthquake: Philippine Sea (Cotabato, Philippines) — December 22, 1976

M 4.9 earthquake: Philippine Sea (Cotabato, Philippines) — December 22, 1976. Epicenter 79 km SW of Cotabato, depth 60 km, 23:17 Local (1976-12-22 15:17 UTC). Shaking felt by ~2.9M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (79 km SW of Cotabato, Philippines) — 6.569, 123.949

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