M 4.5 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — March 4, 1991

M 4.5 earthquake: Philippine Sea (Capitol Hill, Northern Mariana Islands) — March 4, 1991. Epicenter 900 km N of Capitol Hill, depth 33 km, 23:14 Local (1991-03-04 13:14 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

Philippine Sea (900 km N of Capitol Hill, Northern Mariana Islands) — 23.179, 144.238

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