M 5.1 Earthquake: Philippine Sea (Tuguegarao, Philippines) — August 2, 1977

M 5.1 Earthquake: Philippine Sea (Tuguegarao, Philippines) — August 2, 1977. Epicenter 117 km E of Tuguegarao, depth 33 km, 11:10 Local (1977-08-02 02:10 UTC). Shaking felt by ~6.9M people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (117 km E of Tuguegarao, Philippines) — 17.4, 122.812

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