M 4.6 Earthquake: Philippine Sea (Butuan, Philippines) — December 16, 1989

M 4.6 Earthquake: Philippine Sea (Butuan, Philippines) — December 16, 1989. Epicenter 144 km E of Butuan, depth 33 km, 22:30 Local (1989-12-16 14:30 UTC). Shaking felt by ~1.6M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (144 km E of Butuan, Philippines) — 8.525, 126.785

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