M 4.9 earthquake: Philippine Sea (Butuan, Philippines) — September 11, 1979

M 4.9 earthquake: Philippine Sea (Butuan, Philippines) — September 11, 1979. Epicenter 104 km E of Butuan, depth 51 km, 02:50 Local (1979-09-10 18:50 UTC). Shaking felt by ~3.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (104 km E of Butuan, Philippines) — 9.126, 126.477

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