M 4.5 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — July 31, 1987

M 4.5 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — July 31, 1987. Epicenter 686 km N of Capitol Hill, depth 33 km, 08:10 Local (1987-07-30 22:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (686 km N of Capitol Hill, Northern Mariana Islands) — 21.193, 144.172

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