M 6.0 Earthquake: North Pacific Ocean (Japan) — March 19, 1977

M 6.0 Earthquake: North Pacific Ocean (Japan) — March 19, 1977. Epicenter 337 km NE of Kushiro, depth 70 km, 20:56 Local (1977-03-19 10:56 UTC). Shaking felt by ~423K people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (337 km NE, Japan) — 44.2, 148.196

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