2.6

M2.6 Earthquake 9 km WSW of Petrolia, CA — August 3, 2026

2026-08-03 03:22:37 UTC (2026-08-03) · approx. 7:22 PM UTC-8 local

MagnitudeM2.6(md)
Time03:22 UTC≈ 7:22 PM UTC-8
Depth17.5 kmshallow crustal
Coordinates40.295°, -124.378°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.29°, -124.38°

Earthquake Details

Magnitude
2.6 md
Depth
17.5 km
shallow crustal
Location
40.2948°N
-124.3782°E

Technical Information

Event ID
nc75410402
Event Type
earthquake
Status
✓ Reviewed
Significance
103
Stations Used
35
Azimuthal Gap
227.0°
Min Station Distance
0.028°
RMS Residual
0.13 sec
Last Updated
2026-08-26 04:33:36 UTC

Nearby Earthquakes (Last 7 Days)

3.4
9 km SW of Brentwood, CA
10 hours ago · 17.9 km deep
2.5
1 km N of The Geysers, CA
1 day ago · 0.5 km deep
3.1
10 km WNW of Cobb, CA
1 day ago · 3.9 km deep
3.0
10 km WNW of Cobb, CA
1 day ago · 5.1 km deep
2.5
2 km ESE of Oakland, CA
2 days ago · 10.3 km deep
3.6
21 km W of Petrolia, CA
2 days ago · 20.4 km deep
3.8
20 km WSW of Petrolia, CA
2 days ago · 20.3 km deep
2.7
12 km WNW of Cobb, CA
2 days ago · 0.5 km deep
2.6
11 km WNW of Cobb, CA
3 days ago · 1.2 km deep
3.7
36 km E of Hydesville, CA
4 days ago · 24.3 km deep

Actions

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Understanding This Data

Magnitude 2.6 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75410402). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 3, 2026). M2.6 Earthquake 9 km WSW of Petrolia, CA — August 3, 2026. Retrieved August 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75410402/