2.2

M2.2 Earthquake 5 km NNW of Boron, CA — October 27, 2025

2025-10-27 23:33:42 UTC (2025-10-27) · approx. 3:33 PM UTC-8 local

MagnitudeM2.2(ml)
Time23:33 UTC≈ 3:33 PM UTC-8
Depth-0.8 kmshallow crustal
Coordinates35.035°, -117.674°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 35.04°, -117.67°

Earthquake Details

Magnitude
2.2 ml
Depth
-0.8 km
shallow crustal
Location
35.0352°N
-117.6743°E

Technical Information

Event ID
ci41321208
Event Type
quarry blast
Status
✓ Reviewed
Significance
75
Stations Used
44
Azimuthal Gap
58.0°
Min Station Distance
0.102°
RMS Residual
0.23 sec
Last Updated
2025-10-28 15:58:19 UTC

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Actions

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Understanding This Data

Magnitude 2.2 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ci41321208). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, October 27, 2025). M2.2 Earthquake 5 km NNW of Boron, CA — October 27, 2025. Retrieved October 28, 2025 from https://www.earthquaketracker.org/earthquakes/event/ci41321208/