M 6.1 earthquake: North Pacific Ocean (Japan) — April 21, 2013

M 6.1 earthquake: North Pacific Ocean (Japan) — April 21, 2013. Epicenter 543 km S of Hamamatsu, depth 422 km, 12:22 Local (2013-04-21 03:22 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (543 km S, Japan) — 29.933, 138.887

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