M 4.7 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — January 19, 1977

M 4.7 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — January 19, 1977. Epicenter 733 km N of Capitol Hill, depth 104 km, 03:40 Local (1977-01-18 17:40 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (733 km N of Capitol Hill, Northern Mariana Islands) — 21.673, 144.387

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