2.1
Earthquake Details: 4 km NW of Ponderosa Pines, Montana, United States
8/17/2026, 8:17:05 AM
A magnitude 2.1 earthquake occurred near 4 km NW of Ponderosa Pines, Montana, United States on 8/17/2026 at 8:17:05 AM. The seismic event was recorded at a depth of 3.5 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth3.5 km
Significance69
Latitude46.0585
Longitude-111.4157
Event IDmb90205263
Magnitude2.1
Updated:8/17/2026, 11:04:49 PM
External Resources
View on USGS Official SiteLoading map...
Time & depth
- Local time
- 8/17/2026, 2:17:05 AM MDT
- UTC
- 8/17/2026, 8:17:05 AM UTC
3.5 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 1
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 17, 2026, 11:04 PM 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.