M 4.9 Earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 20, 1977

M 4.9 Earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — December 20, 1977. Epicenter 856 km N of Capitol Hill, depth 299 km, 17:05 Local (1977-12-20 07:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (856 km N of Capitol Hill, Northern Mariana Islands) — 22.41, 142.857

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