4.7 Magnitude Earthquake Strikes Near Great Falls, Montana on Jan 29, 2026

Avery K. Bristow

Published: January 29, 2026 3:21 PM ET

4.7 Magnitude Earthquake Strikes Near Great Falls, Montana on Jan 29, 2026

A 4.7 magnitude earthquake struck near Great Falls, Montana, on January 29, 2026. The quake’s epicenter was located approximately 16 kilometers southwest of the city, causing varying degrees of shaking reported across nearby areas.

Impact Across Communities

Reports indicated a range of shaking intensities, measured on the Modified Mercalli Intensity (MMI) Scale. Areas closest to the epicenter experienced significant effects, while those farther away reported lighter shaking.

Strong Shaking Reported

Great Falls, MT (15.4 km SW of Epicenter): Residents reported strong shaking with an MMI of VI. Many felt their entire homes vibrate, with some noting disturbed pets and awakened children.
Clancy, MT (145.7 km SSW of Epicenter): A strong shaking event was recorded, characterized by both vertical and horizontal movement for about 2-5 seconds.
Great Falls, MT (17.9 km SW): Strong shaking was felt, with reports of rattled items and pets panicking.

Moderate and Light Shaking

Further from the epicenter, moderate and light shaking was felt:

Fort Benton (142.4 km ESE): Moderate shaking (MMI V) caused vibrations and rattling, reportedly startling individuals in the vicinity.
Conrad, MT (87.8 km NW): Light shaking (MMI IV) was experienced, with residents reporting rattling noises and minor disruptions.
Helena, MT (132.8 km SSW): Light shaking (MMI IV) felt for 2-5 seconds, described as similar to a large truck passing by.

General Observations

Residents portrayed a mix of reactions to the earthquake, ranging from alarm to curiosity. Many reported that items on desks and shelves shook or fell, and some experienced a loud noise accompanying the quake. The earthquake did not result in known casualties or extensive damage at the time of reporting.

Earthquake intensity varies based on several factors, including the magnitude, depth, and distance from the epicenter. This event serves as a reminder of the geological activity present in Montana.

Conclusion

Monitoring seismic activity remains crucial for the safety and preparedness of local communities. As the region reflects on the January 29 earthquake, individuals are encouraged to stay informed and prepared for future seismic events.