M 5.1 earthquake: Philippine Sea (Butuan, Philippines) — August 7, 1991

M 5.1 earthquake: Philippine Sea (Butuan, Philippines) — August 7, 1991. Epicenter 97 km E of Butuan, depth 65 km, 07:21 Local (1991-08-06 23:21 UTC). Shaking felt by ~7M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (97 km E of Butuan, Philippines) — 8.773, 126.412

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