M 4.5 earthquake: North Pacific Ocean (Japan) — July 20, 1979

M 4.5 earthquake: North Pacific Ocean (Japan) — July 20, 1979. Epicenter 327 km SE of Yokohama, depth 40 km, 21:10 Local (1979-07-20 12:10 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (327 km SE, Japan) — 33.238, 141.982

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