M 4.9 earthquake: Philippine Sea (Agana, Guam) — July 4, 1987

M 4.9 earthquake: Philippine Sea (Agana, Guam) — July 4, 1987. Epicenter 64 km SW of Agana, depth 33 km, 20:39 Local (1987-07-04 10:39 UTC). Shaking felt by ~122K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (64 km SW of Agana, Guam) — 13.104, 144.29

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