M 4.5 Earthquake: Philippine Sea (Laoag, Philippines) — December 15, 1983

M 4.5 Earthquake: Philippine Sea (Laoag, Philippines) — December 15, 1983. Epicenter 268 km NE of Laoag, depth 33 km, 09:01 Local (1983-12-15 01:01 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (268 km NE of Laoag, Philippines) — 20.013, 122.273

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