M 4.6 earthquake: Philippine Sea (Tuguegarao, Philippines) — October 3, 1980

M 4.6 earthquake: Philippine Sea (Tuguegarao, Philippines) — October 3, 1980. Epicenter 273 km N of Tuguegarao, depth 33 km, 03:21 Local (1980-10-02 19:21 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (273 km N of Tuguegarao, Philippines) — 19.97, 122.462

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