M 5.1 earthquake: Philippine Sea (Butuan, Philippines) — August 11, 1978

M 5.1 earthquake: Philippine Sea (Butuan, Philippines) — August 11, 1978. Epicenter 199 km E of Butuan, depth 33 km, 13:22 Local (1978-08-11 05:22 UTC). Shaking felt by ~1.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (199 km E of Butuan, Philippines) — 9.464, 127.279

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