M 5.8 earthquake in the USA (Helena) — July 6, 2017

M 5.8 earthquake in the USA (Helena) — July 6, 2017. Epicenter 52 km NW of Helena, depth 12 km, 00:30 Local (2017-07-06 06:30 UTC). Shaking felt by ~1.9M people. Readings from every reporting agency, affected towns, aftershock sequence.

52 km NW of Helena (USA) — 46.8811, -112.5753