M 7.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 29, 1940

M 7.7 earthquake: North Pacific Ocean (Northern Mariana Islands) — December 29, 1940. Epicenter 379 km NE of Capitol Hill, depth 15 km, 02:37 Local (1940-12-28 16:37 UTC). Shaking felt by ~125K people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (379 km NE, Northern Mariana Islands) — 18.204, 147.462

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