M 5.3 earthquake: Philippine Sea (General Santos, Philippines) — April 17, 1977

M 5.3 earthquake: Philippine Sea (General Santos, Philippines) — April 17, 1977. Epicenter 128 km E of General Santos, depth 94 km, 22:43 Local (1977-04-17 13:43 UTC). Shaking felt by ~5.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (128 km E of General Santos, Philippines) — 5.78, 126.287

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