M 5.5 earthquake: Philippine Sea (Surigao, Philippines) — January 28, 1991

M 5.5 earthquake: Philippine Sea (Surigao, Philippines) — January 28, 1991. Epicenter 84 km N of Surigao, depth 60 km, 17:06 Local (1991-01-28 09:06 UTC). Shaking felt by ~5.8M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (84 km N of Surigao, Philippines) — 10.508, 125.707

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