M 5.1 earthquake: Philippine Sea (Agana, Guam) — February 7, 1987

M 5.1 earthquake: Philippine Sea (Agana, Guam) — February 7, 1987. Epicenter 256 km SW of Agana, depth 20 km, 23:07 Local (1987-02-07 13:07 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (256 km SW of Agana, Guam) — 11.652, 143.307

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