M 4.6 earthquake: North Pacific Ocean (Japan) — May 22, 2011

M 4.6 earthquake: North Pacific Ocean (Japan) — May 22, 2011. Epicenter 274 km SE of Mito, depth 7 km, 13:45 Local (2011-05-22 04:45 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (274 km SE, Japan) — 34.791, 142.801

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