M 4.6 earthquake: Philippine Sea (Agana, Guam) — August 7, 1991

M 4.6 earthquake: Philippine Sea (Agana, Guam) — August 7, 1991. Epicenter 32 km S of Agana, depth 64 km, 22:03 Local (1991-08-07 12:03 UTC). Shaking felt by ~122K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (32 km S of Agana, Guam) — 13.181, 144.73

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