M 7.5 earthquake: North Pacific Ocean (Japan) — March 23, 1978

M 7.5 earthquake: North Pacific Ocean (Japan) — March 23, 1978. Epicenter 380 km E of Kitami, depth 33 km, 13:15 Local (1978-03-23 03:15 UTC). Shaking felt by ~13.7M people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (380 km E, Japan) — 44.932, 148.439

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