M 5.5 earthquake in the Philippines (Laoag) — April 29, 1971

M 5.5 earthquake in the Philippines (Laoag) — April 29, 1971. Epicenter 20 km SE of Laoag, depth 31 km, 08:46 Local (1971-04-29 00:46 UTC). Shaking felt by ~10.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

20 km SE of Laoag (Philippines) — 18.064, 120.724

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