2.1

M2.1 Earthquake 50 km WNW of Petrolia, CA — July 27, 2025

2025-07-27 18:16:28 UTC (2025-07-27) · approx. 10:16 AM UTC-8 local

MagnitudeM2.1(md)
Time18:16 UTC≈ 10:16 AM UTC-8
Depth12.7 kmshallow crustal
Coordinates40.342°, -124.873°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.34°, -124.87°

Earthquake Details

Magnitude
2.1 md
Depth
12.7 km
shallow crustal
Location
40.3415°N
-124.8727°E

Technical Information

Event ID
nc75215852
Event Type
earthquake
Status
✓ Reviewed
Significance
68
Stations Used
52
Azimuthal Gap
253.0°
Min Station Distance
0.409°
RMS Residual
0.31 sec
Last Updated
2025-07-28 18:57:17 UTC

Nearby Earthquakes (Last 7 Days)

4.2
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2.7
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2.5
11 km ESE of Willits, CA
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3.0
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3.0
215 km W of Bandon, Oregon
2 days ago · 10.0 km deep
4.6
214 km W of Bandon, Oregon
2 days ago · 17.4 km deep
2.8
158 km W of Petrolia, CA
2 days ago · 10.0 km deep
2.5
3 km ESE of Kenwood, CA
3 days ago · 4.1 km deep
3.1
6 km NW of The Geysers, CA
4 days ago · 2.3 km deep
2.8
171 km WSW of Port Orford, Oregon
4 days ago · 10.0 km deep

Actions

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Understanding This Data

Magnitude 2.1 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75215852). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, July 27, 2025). M2.1 Earthquake 50 km WNW of Petrolia, CA — July 27, 2025. Retrieved July 28, 2025 from https://www.earthquaketracker.org/earthquakes/event/nc75215852/