M 5.4 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 30, 1991

M 5.4 earthquake: North Pacific Ocean (Northern Mariana Islands) — July 30, 1991. Epicenter 414 km N of Capitol Hill, depth 595 km, 19:39 Local (1991-07-30 09:39 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (414 km N, Northern Mariana Islands) — 18.889, 145.154

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