M 5.4 earthquake: Philippine Sea (Butuan, Philippines) — April 23, 1984

M 5.4 earthquake: Philippine Sea (Butuan, Philippines) — April 23, 1984. Epicenter 107 km E of Butuan, depth 33 km, 01:11 Local (1984-04-22 17:11 UTC). Shaking felt by ~9.5M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (107 km E of Butuan, Philippines) — 9.069, 126.506

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