M 6.1 earthquake: Philippine Sea (Agana, Guam) — December 31, 1929

M 6.1 earthquake: Philippine Sea (Agana, Guam) — December 31, 1929. Epicenter 494 km SW of Agana, depth 15 km, 10:04 Local (1929-12-31 01:04 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (494 km SW of Agana, Guam) — 10.787, 141.126

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