M 1.4 Quarry Blast - 5 km NNW of Boron, CA
Source-attributed earthquakes with magnitude, depth, and observation times.
current · reviewed · official-source
M 1.4 Quarry Blast - 5 km NNW of Boron, CA. Reported magnitude 1.38. Depth -0.82 km. See the USGS event record for reviewed details and updates.
- Provider
- USGS — earthquakes, past week
- Source observed
- 10/4/2026, 11:05:27 PM UTC
- Source updated
- 10/6/2026, 7:51:46 PM UTC
- depth km
- -0.82
- location
- 5 km NNW of Boron, CA
- magnitude
- 1.38
- event type
- quarry blast
- significance
- 29
- tsunami flag
- 0
- review status
- reviewed
- magnitude type
- ml
- freshness minutes
- 10080
Source use policy · US government data
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Update history (1 recent revisions)
- 10/8/2026, 1:41:59 AM UTC
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