M 5.1 Earthquake: Philippine Sea (Surigao, Philippines) — September 22, 1973

M 5.1 Earthquake: Philippine Sea (Surigao, Philippines) — September 22, 1973. Epicenter 73 km E of Surigao, depth 54 km, 13:42 Local (1973-09-22 05:42 UTC). Shaking felt by ~3.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (73 km E of Surigao, Philippines) — 9.832, 126.156

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