M 5.5 earthquake: North Pacific Ocean (Japan) — August 21, 1988

M 5.5 earthquake: North Pacific Ocean (Japan) — August 21, 1988. Epicenter 446 km NE of Kushiro, depth 52 km, 21:44 Local (1988-08-21 11:44 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (446 km NE, Japan) — 44.571, 149.473

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