M 5.1 earthquake: Philippine Sea (Agana, Guam) — February 24, 1977

M 5.1 earthquake: Philippine Sea (Agana, Guam) — February 24, 1977. Epicenter 217 km SW of Agana, depth 33 km, 04:03 Local (1977-02-23 18:03 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (217 km SW of Agana, Guam) — 11.913, 143.547

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