M 4.9 earthquake: North Pacific Ocean (Japan) — December 23, 2010

M 4.9 earthquake: North Pacific Ocean (Japan) — December 23, 2010. Epicenter 1016 km S of Yokohama, depth 10 km, 11:56 Local (2010-12-23 01:56 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (1016 km S, Japan) — 26.912, 143.471

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