M 5.6 earthquake: Philippine Sea (Agana, Guam) — December 22, 1972

M 5.6 earthquake: Philippine Sea (Agana, Guam) — December 22, 1972. Epicenter 119 km S of Agana, depth 18 km, 20:39 Local (1972-12-22 10:39 UTC). Shaking felt by ~122K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (119 km S of Agana, Guam) — 12.402, 144.794

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