1.7

Earthquake Details: 29 km N of Sedan, Montana, United States

Nov 4, 2026, 15:42:52

Depth
5.5 km
Felt reports
No data
Source: USGSUpdated: Nov 9, 2026, 03:26 PM UTC

A magnitude 1.7 earthquake occurred on Nov 4, 2026 at 15:42:52. Epicenter: 29 km N of Sedan, Montana, United States. Reported depth: 5.5 km.

Tsunami information

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Time & depth

Local time
Nov 4, 2026, 08:42:52 MST
UTC
Nov 4, 2026, 15:42:52 UTC
5.5 km · Shallow-focus

Less than 70 km deep. Shaking is often stronger near the epicentre.

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Nearby major cities

Bozeman
62 km S
Helena
98 km NW
Butte
131 km W
Great Falls
145 km N
Nearby earthquakes · 12
M2.530 km SW of Salmon, IdahoBeforeM2.4Western MontanaBeforeM2.48 km ESE of Stryker, MontanaBeforeM2.1northern IdahoBeforeM2.428 km NW of Stanley, IdahoAfterM2.218 km NE of Georgetown, IdahoAfterM2.75 km E of Hoback, WyomingAfterM2.625 km S of Clayton, IdahoAfterM2.322 km N of Ovando, MontanaAfterM2.515 km SW of Georgetown, IdahoAfterM2.245 km NNE of Spencer, IdahoAfterM2.245 km NNE of Spencer, IdahoAfter

Agency measurements

Agencies may use different observations and magnitude scales, and initial estimates can change.

  • USGSM 1.69

    mb90212033

    Depth:
    5.5 km
    Time:
    Updated:
    Nov 9, 2026, 03:26 PM UTC

Technical Details

Depth5.5 km
Significance44
Latitude46.2258
Longitude-110.8687
Event IDmb90212033
Magnitude1.7
Updated:Nov 9, 2026, 15:26:50 UTC

Regional Seismicity

View recent seismic activity near this event:

United StatesMontanaBozeman (Nearest City)

External Resources

YouTube · Earthquake LiveView on USGS Official Site

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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Nov 9, 2026, 15:26 UTC.

Data sources: