2.1
Earthquake Details: 15 km ENE of Twin Bridges, Montana, United States
Oct 16, 2026, 15:31:23
- Depth
- 4.19 km
- Felt reports
- No data
Source: USGSUpdated: Oct 16, 2026, 05:29 PM UTC
A magnitude 2.1 earthquake occurred on Oct 16, 2026 at 15:31:23. Epicenter: 15 km ENE of Twin Bridges, Montana, United States. Reported depth: 4.19 km.
Tsunami information
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Time & depth
- Local time
- Oct 16, 2026, 09:31:23 MDT
- UTC
- Oct 16, 2026, 15:31:23 UTC
4.19 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 2.14
mb90210658
- Depth:
- 4.19 km
- Time:
- Updated:
- Oct 16, 2026, 05:29 PM UTC
Technical Details
Depth4.19 km
Significance70
Latitude45.6083
Longitude-112.1518
Event IDmb90210658
Magnitude2.1
Updated:Oct 16, 2026, 17:29:49 UTC
Regional Seismicity
External Resources
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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: Oct 16, 2026, 17:29 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.