M 4.6 earthquake: Philippine Sea (Agana, Guam) — January 23, 1973

M 4.6 earthquake: Philippine Sea (Agana, Guam) — January 23, 1973. Epicenter 41 km N of Agana, depth 145 km, 15:22 Local (1973-01-23 05:22 UTC). Shaking felt by ~122K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (41 km N of Agana, Guam) — 13.826, 144.638

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