M 4.9 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — October 31, 1991

M 4.9 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — October 31, 1991. Epicenter 960 km N of Capitol Hill, depth 55 km, 03:56 Local (1991-10-30 17:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (960 km N of Capitol Hill, Northern Mariana Islands) — 23.384, 142.786

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