M 5.2 earthquake: Philippine Sea (Surigao, Philippines) — May 20, 1975

M 5.2 earthquake: Philippine Sea (Surigao, Philippines) — May 20, 1975. Epicenter 84 km E of Surigao, depth 68 km, 23:40 Local (1975-05-20 15:40 UTC). Shaking felt by ~4.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (84 km E of Surigao, Philippines) — 9.691, 126.248

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