2.3

M2.3 Earthquake 28 km W of Petrolia, CA — August 12, 2026

2026-08-12 21:47:27 UTC (2026-08-12) · approx. 1:47 PM UTC-8 local

MagnitudeM2.3(md)
Time21:47 UTC≈ 1:47 PM UTC-8
Depth20.9 kmshallow crustal
Coordinates40.280°, -124.607°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.28°, -124.61°

Earthquake Details

Magnitude
2.3 md
Depth
20.9 km
shallow crustal
Location
40.2798°N
-124.6070°E

Technical Information

Event ID
nc75417107
Event Type
earthquake
Status
✓ Reviewed
Significance
78
Stations Used
31
Azimuthal Gap
251.0°
Min Station Distance
0.203°
RMS Residual
0.19 sec
Last Updated
2026-08-24 22:32:25 UTC

Nearby Earthquakes (Last 7 Days)

3.5
20 km WSW of Petrolia, CA
11 hours ago · 20.1 km deep
3.8
20 km WSW of Gerlach, Nevada
19 hours ago · 7.0 km deep
2.7
3 km ESE of Santa Rosa, CA
1 day ago · 9.1 km deep
3.3
17 km WSW of Petrolia, CA
1 day ago · 9.0 km deep
2.6
7 km E of Hydesville, CA
1 day ago · 24.2 km deep
3.3
19 km WSW of Gerlach, Nevada
2 days ago · 11.0 km deep
3.0
9 km SW of Brentwood, CA
2 days ago · 16.9 km deep
2.5
9 km SW of Brentwood, CA
3 days ago · 16.8 km deep
2.6
18 km SE of Silver Springs, Nevada
3 days ago · 7.4 km deep
2.5
6 km E of Willits, CA
3 days ago · 5.2 km deep

Actions

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Understanding This Data

Magnitude 2.3 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75417107). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 12, 2026). M2.3 Earthquake 28 km W of Petrolia, CA — August 12, 2026. Retrieved August 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75417107/