M 4.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — April 11, 1987

M 4.6 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — April 11, 1987. Epicenter 510 km NW of Capitol Hill, depth 33 km, 07:02 Local (1987-04-10 21:02 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (510 km NW of Capitol Hill, Northern Mariana Islands) — 19.313, 143.609

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