M 6.1 earthquake: North Pacific Ocean (Japan) — December 21, 1958

M 6.1 earthquake: North Pacific Ocean (Japan) — December 21, 1958. Epicenter 268 km N of Naha, depth 35 km, 04:20 Local (1958-12-20 19:20 UTC). Shaking felt by ~588K people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (268 km N, Japan) — 28.615, 127.511

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