M 4.7 earthquake: Philippine Sea (Davao, Philippines) — April 21, 1978

M 4.7 earthquake: Philippine Sea (Davao, Philippines) — April 21, 1978. Epicenter 109 km E of Davao, depth 184 km, 21:17 Local (1978-04-21 13:17 UTC). Shaking felt by ~546K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (109 km E of Davao, Philippines) — 7.089, 126.615

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