M 4.8 Earthquake: Philippine Sea (Surigao, Philippines) — May 6, 1991

M 4.8 Earthquake: Philippine Sea (Surigao, Philippines) — May 6, 1991. Epicenter 55 km N of Surigao, depth 33 km, 09:05 Local (1991-05-06 01:05 UTC). Shaking felt by ~1.3M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (55 km N of Surigao, Philippines) — 10.277, 125.45

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