M 4.7 earthquake: Philippine Sea (Surigao, Philippines) — February 12, 1990

M 4.7 earthquake: Philippine Sea (Surigao, Philippines) — February 12, 1990. Epicenter 66 km W of Surigao, depth 50 km, 03:23 Local (1990-02-11 19:23 UTC). Shaking felt by ~2.1M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (66 km W of Surigao, Philippines) — 9.709, 124.888

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