M 4.9 earthquake: Philippine Sea (Agana, Guam) — January 2, 1977

M 4.9 earthquake: Philippine Sea (Agana, Guam) — January 2, 1977. Epicenter 202 km SW of Agana, depth 33 km, 16:48 Local (1977-01-02 06:48 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (202 km SW of Agana, Guam) — 12.023, 143.617

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