M 6.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — February 11, 1921

M 6.6 earthquake: North Pacific Ocean (Northern Mariana Islands) — February 11, 1921. Epicenter 302 km N of Capitol Hill, depth 15 km, 09:53 Local (1921-02-10 23:53 UTC). Shaking felt by ~2.5K people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (302 km N, Northern Mariana Islands) — 17.792, 146.648

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