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June 1925 Clarkston Valley, USA Images

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 23, 2026 | Last Modified: 2012-02-01T00:00:00.000+00:00
Location: east of Helena. Affected area: 803,000 square kilometers. Damage: $0.3 million. Chimneys fell in every direction from the shaking. In addition, brick and mortar structures were damaged. Cracks appeared in roads, and railroad tracks were bent.

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