M 4.6 Earthquake: Philippine Sea (Agana, Guam) — December 9, 1978

M 4.6 Earthquake: Philippine Sea (Agana, Guam) — December 9, 1978. Epicenter 273 km S of Agana, depth 28 km, 18:35 Local (1978-12-09 08:35 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (273 km S of Agana, Guam) — 11.07, 144.218

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