2.3
M2.3 Earthquake 5 km WNW of Chester, CA — September 16, 2025
2025-09-16 22:05:43 UTC (2025-09-16) · approx. 2:05 PM UTC-8 local
MagnitudeM2.3(md)
Time22:05 UTC≈ 2:05 PM UTC-8
Depth7.5 kmshallow crustal
Coordinates40.329°, -121.280°
Felt byNo felt reports
Status✓ Reviewed by USGS

Earthquake Details
Magnitude
2.3 md
Depth
7.5 km
shallow crustal
Location
40.3293°N
-121.2802°E
-121.2802°E
Technical Information
Event ID
nc75238537
Event Type
earthquake
Status
✓ Reviewed
Significance
84
Stations Used
29
Azimuthal Gap
65.0°
Min Station Distance
0.129°
RMS Residual
0.21 sec
Last Updated
2025-09-23 20:57:16 UTC
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Actions
Understanding This Data
Magnitude 2.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: nc75238537). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, September 16, 2025). M2.3 Earthquake 5 km WNW of Chester, CA — September 16, 2025. Retrieved May 28, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75238537/