M 4.9 earthquake: Philippine Sea (Surigao, Philippines) — September 6, 1981

M 4.9 earthquake: Philippine Sea (Surigao, Philippines) — September 6, 1981. Epicenter 86 km SE of Surigao, depth 73 km, 07:05 Local (1981-09-05 23:05 UTC). Shaking felt by ~2.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (86 km SE of Surigao, Philippines) — 9.427, 126.184

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