M 4.8 earthquake: Philippine Sea (Surigao, Philippines) — October 18, 1987

M 4.8 earthquake: Philippine Sea (Surigao, Philippines) — October 18, 1987. Epicenter 136 km NE of Surigao, depth 33 km, 00:11 Local (1987-10-17 16:11 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (136 km NE of Surigao, Philippines) — 10.348, 126.594

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