M 5.2 earthquake: Philippine Sea (Surigao, Philippines) — September 30, 1973

M 5.2 earthquake: Philippine Sea (Surigao, Philippines) — September 30, 1973. Epicenter 71 km E of Surigao, depth 77 km, 18:09 Local (1973-09-30 10:09 UTC). Shaking felt by ~3.5M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (71 km E of Surigao, Philippines) — 9.915, 126.124

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