M 7.0 earthquake: North Pacific Ocean (Japan) — April 21, 1916

M 7.0 earthquake: North Pacific Ocean (Japan) — April 21, 1916. Epicenter 276 km SE of Yokohama, depth 15 km, 20:31 Local (1916-04-21 11:31 UTC). Shaking felt by ~85M people. Readings from every reporting agency, affected towns, aftershock sequence.

North Pacific Ocean (276 km SE, Japan) — 33.7, 141.759

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