M 4.8 earthquake: North Pacific Ocean (Japan) — August 23, 2009

M 4.8 earthquake: North Pacific Ocean (Japan) — August 23, 2009. Epicenter 500 km SE of Yokohama, depth 31 km, 00:06 Local (2009-08-22 14:06 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (500 km SE, Japan) — 31.64, 142.509

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