M 5.1 earthquake in the USA (Billings) — June 30, 1975

M 5.1 earthquake in the USA (Billings) — June 30, 1975. Epicenter 205 km SW of Billings, depth 5 km, 13:00 Local (1975-06-30 19:00 UTC). Shaking felt by ~700K people. Readings from every reporting agency, affected towns, aftershock sequence.

205 km SW of Billings (USA) — 44.766, -110.718

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