M 4.5 earthquake in Vietnam (Sơn La) — October 6, 1991

M 4.5 earthquake in Vietnam (Sơn La) — October 6, 1991. Epicenter 34 km E of Sơn La, depth 10 km, 17:50 Local (1991-10-06 10:50 UTC). Shaking felt by ~6.4M people. Readings from every reporting agency, affected towns, aftershock sequence.

34 km E of Sơn La (Vietnam) — 21.384, 104.231

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