M 5.3 Earthquake: Philippine Sea (Surigao, Philippines) — December 14, 1977

M 5.3 Earthquake: Philippine Sea (Surigao, Philippines) — December 14, 1977. Epicenter 32 km NW of Surigao, depth 223 km, 16:47 Local (1977-12-14 08:47 UTC). Shaking felt by ~616K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (32 km NW of Surigao, Philippines) — 10.003, 125.292

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