M 4.7 earthquake: Philippine Sea (Surigao, Philippines) — August 12, 1987

M 4.7 earthquake: Philippine Sea (Surigao, Philippines) — August 12, 1987. Epicenter 55 km E of Surigao, depth 33 km, 08:27 Local (1987-08-12 00:27 UTC). Shaking felt by ~2.5M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (55 km E of Surigao, Philippines) — 9.686, 125.978

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