M 5.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — May 24, 1977

M 5.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — May 24, 1977. Epicenter 403 km N of Capitol Hill, depth 207 km, 20:23 Local (1977-05-24 10:23 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (403 km N, Northern Mariana Islands) — 18.814, 145.352

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