M 4.7 earthquake: Philippine Sea (Agana, Guam) — May 28, 1987

M 4.7 earthquake: Philippine Sea (Agana, Guam) — May 28, 1987. Epicenter 272 km SW of Agana, depth 33 km, 06:35 Local (1987-05-27 20:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (272 km SW of Agana, Guam) — 12.074, 142.687

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