1.9
Earthquake Details: 14 km ESE of Harrison, Montana
Aug 27, 2026, 04:29:41
A magnitude 1.9 earthquake occurred near 14 km ESE of Harrison, Montana on Aug 27, 2026 at 04:29:41. The seismic event was recorded at a depth of 3.51 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth3.51 km
Significance55
Latitude45.6508
Longitude-111.6093
Event IDmb90206178
Magnitude1.9
Updated:Aug 27, 2026, 15:06:24 UTC
External Resources
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Time & depth
- Local time
- Aug 26, 2026, 22:29:41 MDT
- UTC
- Aug 27, 2026, 04:29:41 UTC
3.51 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 5
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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: Aug 27, 2026, 15:06 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.