M 5.2 earthquake: Philippine Sea (Surigao, Philippines) — June 30, 1977

M 5.2 earthquake: Philippine Sea (Surigao, Philippines) — June 30, 1977. Epicenter 38 km E of Surigao, depth 33 km, 09:12 Local (1977-06-30 00:12 UTC). Shaking felt by ~4.7M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (38 km E of Surigao, Philippines) — 9.871, 125.826

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