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
Map showing earthquake epicenter at 40.33°, -121.28°

Earthquake Details

Magnitude
2.3 md
Depth
7.5 km
shallow crustal
Location
40.3293°N
-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

Nearby Earthquakes (Last 7 Days)

2.8
15 km ENE of Red Bluff, CA
2 hours ago · 9.7 km deep
3.7
17 km SE of Silver Springs, Nevada
5 hours ago · 5.0 km deep
2.5
26 km NE of Viola, CA
18 hours ago · -2.0 km deep
2.9
7 km WNW of Round Valley, CA
1 day ago · 4.9 km deep
2.8
18 km WSW of Petrolia, CA
1 day ago · 21.6 km deep
2.6
34 km SE of Mina, Nevada
1 day ago · 7.5 km deep
2.7
26 km NE of Viola, CA
2 days ago · 8.3 km deep
3.4
26 km NE of Viola, CA
2 days ago · 7.0 km deep
2.5
7 km NW of Avenal, CA
2 days ago · 9.0 km deep
3.2
29 km W of Petrolia, CA
3 days ago · 9.3 km deep

Actions

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Understanding This Data

Magnitude 2.3 earthquakes are typically only recorded by instruments.

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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/