M 4.7 earthquake: North Pacific Ocean (South Korea) — March 28, 1993

M 4.7 earthquake: North Pacific Ocean (South Korea) — March 28, 1993. Epicenter 268 km W of Jeju, depth 33 km, 10:16 Local (1993-03-28 01:16 UTC). Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (268 km W, South Korea) — 32.936, 123.723

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