2.1

M2.1 Earthquake 5 km NNW of Boron, CA — July 22, 2025

2025-07-22 23:34:32 UTC (2025-07-22) · approx. 3:34 PM UTC-8 local

MagnitudeM2.1(ml)
Time23:34 UTC≈ 3:34 PM UTC-8
Depth-0.8 kmshallow crustal
Coordinates35.042°, -117.670°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 35.04°, -117.67°

Earthquake Details

Magnitude
2.1 ml
Depth
-0.8 km
shallow crustal
Location
35.0423°N
-117.6697°E

Technical Information

Event ID
ci41029303
Event Type
quarry blast
Status
✓ Reviewed
Significance
65
Stations Used
34
Azimuthal Gap
100.0°
Min Station Distance
0.110°
RMS Residual
0.12 sec
Last Updated
2025-07-24 23:58:12 UTC

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Actions

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Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ci41029303). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, July 22, 2025). M2.1 Earthquake 5 km NNW of Boron, CA — July 22, 2025. Retrieved July 24, 2025 from https://www.earthquaketracker.org/earthquakes/event/ci41029303/