3.0

M3.0 Earthquake 35 km WNW of Petrolia, CA — April 20, 2025

2025-04-20 21:55:48 UTC (2025-04-20) · approx. 1:55 PM UTC-8 local

MagnitudeM3.0(md)
Time21:55 UTC≈ 1:55 PM UTC-8
Depth20.5 kmshallow crustal
Coordinates40.346°, -124.692°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.35°, -124.69°

Earthquake Details

Magnitude
3.0 md
Depth
20.5 km
shallow crustal
Location
40.3463°N
-124.6923°E

Technical Information

Event ID
nc75168971
Event Type
earthquake
Status
✓ Reviewed
Significance
134
Stations Used
89
Azimuthal Gap
237.0°
Min Station Distance
0.274°
RMS Residual
0.17 sec
Last Updated
2025-06-27 00:34:41 UTC

Nearby Earthquakes (Last 7 Days)

2.9
29 km W of Petrolia, CA
9 hours ago · 12.9 km deep
2.7
12 km SW of Ridgemark, CA
1 day ago · 8.9 km deep
2.7
2 km NE of Pacifica, CA
1 day ago · 6.5 km deep
2.6
12 km SW of Ridgemark, CA
2 days ago · 9.1 km deep
4.0
10 km N of Lake Pillsbury, CA
2 days ago · 11.6 km deep
2.8
236 km W of Ferndale, California
3 days ago · 10.0 km deep
2.6
14 km E of Seven Trees, CA
3 days ago · 6.8 km deep
2.5
4 km SE of Aromas, CA
4 days ago · 4.8 km deep
3.9
209 km WSW of Pistol River, Oregon
6 days ago · 10.0 km deep
2.5
7 km W of Cobb, CA
6 days ago · 2.0 km deep

Actions

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Understanding This Data

Magnitude 3.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75168971). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, April 20, 2025). M3.0 Earthquake 35 km WNW of Petrolia, CA — April 20, 2025. Retrieved June 27, 2025 from https://www.earthquaketracker.org/earthquakes/event/nc75168971/