M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — May 7, 1975

M 4.5 earthquake: North Pacific Ocean (Northern Mariana Islands) — May 7, 1975. Epicenter 378 km N of Capitol Hill, depth 176 km, 13:55 Local (1975-05-07 03:55 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (378 km N, Northern Mariana Islands) — 18.613, 145.676

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