M 4.5 Earthquake: North Pacific Ocean (Northern Mariana Islands) — August 11, 1980

M 4.5 Earthquake: North Pacific Ocean (Northern Mariana Islands) — August 11, 1980. Epicenter 490 km N of Capitol Hill, depth 116 km, 12:04 Local (1980-08-11 02:04 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (490 km N, Northern Mariana Islands) — 19.62, 145.639

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