M 5.5 earthquake: Philippine Sea (Agana, Guam) — June 18, 1972

M 5.5 earthquake: Philippine Sea (Agana, Guam) — June 18, 1972. Epicenter 107 km W of Agana, depth 148 km, 23:38 Local (1972-06-18 13:38 UTC). Shaking felt by ~122K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (107 km W of Agana, Guam) — 13.171, 143.806

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