M 5.2 earthquake: Philippine Sea (Agana, Guam) — January 20, 1978

M 5.2 earthquake: Philippine Sea (Agana, Guam) — January 20, 1978. Epicenter 47 km W of Agana, depth 133 km, 15:22 Local (1978-01-20 05:22 UTC). Shaking felt by ~122K people. Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (47 km W of Agana, Guam) — 13.416, 144.316

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