M 5.5 earthquake: Philippine Sea (Agana, Guam) — August 12, 1990

M 5.5 earthquake: Philippine Sea (Agana, Guam) — August 12, 1990. Epicenter 91 km W of Agana, depth 144 km, 17:51 Local (1990-08-12 07:51 UTC). Shaking felt by ~122K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (91 km W of Agana, Guam) — 13.277, 143.935

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