M 4.8 earthquake: Philippine Sea (Agana, Guam) — July 10, 1981

M 4.8 earthquake: Philippine Sea (Agana, Guam) — July 10, 1981. Epicenter 123 km W of Agana, depth 144 km, 18:52 Local (1981-07-10 08:52 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (123 km W of Agana, Guam) — 13.104, 143.678

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