M 4.7 earthquake: Philippine Sea (Butuan, Philippines) — September 16, 1987

M 4.7 earthquake: Philippine Sea (Butuan, Philippines) — September 16, 1987. Epicenter 129 km E of Butuan, depth 33 km, 21:23 Local (1987-09-16 13:23 UTC). Shaking felt by ~1.6M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (129 km E of Butuan, Philippines) — 9.069, 126.715

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