M 1.7 Quarry Blast - 5 km E of Butte, Montana
Source-attributed earthquakes with magnitude, depth, and observation times.
current · reviewed · official-source
M 1.7 Quarry Blast - 5 km E of Butte, Montana. Reported magnitude 1.67. Depth -2 km. See the USGS event record for reviewed details and updates.
- Provider
- USGS — earthquakes, past week
- Source observed
- 10/1/2026, 7:01:30 PM UTC
- Source updated
- 10/5/2026, 5:54:03 PM UTC
- depth km
- -2
- location
- 5 km E of Butte, Montana
- magnitude
- 1.67
- event type
- quarry blast
- significance
- 43
- tsunami flag
- 0
- review status
- reviewed
- magnitude type
- ml
- freshness minutes
- 10080
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Update history (1 recent revisions)
- 10/8/2026, 1:43:15 AM UTC
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