M 4.7 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — July 4, 1978

M 4.7 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — July 4, 1978. Epicenter 631 km N of Capitol Hill, depth 33 km, 06:05 Local (1978-07-03 20:05 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (631 km N of Capitol Hill, Northern Mariana Islands) — 20.833, 144.941

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