M 4.9 Earthquake: Philippine Sea (Butuan, Philippines) — June 21, 1978

M 4.9 Earthquake: Philippine Sea (Butuan, Philippines) — June 21, 1978. Epicenter 120 km E of Butuan, depth 46 km, 01:02 Local (1978-06-20 17:02 UTC). Shaking felt by ~3.9M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (120 km E of Butuan, Philippines) — 8.634, 126.586

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