M 4.8 earthquake: Philippine Sea (Agana, Guam) — May 5, 1981

M 4.8 earthquake: Philippine Sea (Agana, Guam) — May 5, 1981. Epicenter 478 km W of Agana, depth 33 km, 03:42 Local (1981-05-04 18:42 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (478 km W of Agana, Guam) — 12.084, 140.573

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