M 4.9 earthquake: North Pacific Ocean (Guam) — January 9, 1977

M 4.9 earthquake: North Pacific Ocean (Guam) — January 9, 1977. Epicenter 850 km S of Agana, depth 33 km, 18:31 Local (1977-01-09 08:31 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (850 km S, Guam) — 6.102, 146.819

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