M 4.6 earthquake: Philippine Sea (Butuan, Philippines) — June 9, 1991

M 4.6 earthquake: Philippine Sea (Butuan, Philippines) — June 9, 1991. Epicenter 123 km E of Butuan, depth 33 km, 05:36 Local (1991-06-08 21:36 UTC). Shaking felt by ~3.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (123 km E of Butuan, Philippines) — 8.658, 126.62

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