2.8

M2.8 Earthquake 57 km W of Petrolia, CA — August 28, 2026

2026-08-28 21:24:34 UTC (2026-08-28) · approx. 1:24 PM UTC-8 local

MagnitudeM2.8(md)
Time21:24 UTC≈ 1:24 PM UTC-8
Depth24.7 kmshallow crustal
Coordinates40.334°, -124.952°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.33°, -124.95°

Earthquake Details

Magnitude
2.8 md
Depth
24.7 km
shallow crustal
Location
40.3345°N
-124.9518°E

Technical Information

Event ID
nc75426512
Event Type
earthquake
Status
✓ Reviewed
Significance
121
Stations Used
83
Azimuthal Gap
246.0°
Min Station Distance
0.468°
RMS Residual
0.25 sec
Last Updated
2026-09-15 04:32:33 UTC

Nearby Earthquakes (Last 7 Days)

2.5
2 km NW of The Geysers, CA
21 hours ago · 0.5 km deep
3.1
80 km WNW of Ferndale, CA
1 day ago · 4.6 km deep
2.5
5 km WSW of Burning Man Earth, Nevada
2 days ago · 1.5 km deep
2.6
18 km WSW of Petrolia, CA
3 days ago · 7.3 km deep
2.6
184 km WSW of Port Orford, Oregon
3 days ago · 10.0 km deep
2.5
10 km ESE of Gilroy, CA
5 days ago · 5.1 km deep
3.0
13 km W of Petrolia, CA
5 days ago · 19.6 km deep
3.2
74 km W of Petrolia, CA
6 days ago · 10.7 km deep
3.0
7 km NW of The Geysers, CA
6 days ago · 2.5 km deep
3.0
23 km NE of Hydesville, CA
6 days ago · 4.4 km deep

Actions

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Understanding This Data

Magnitude 2.8 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75426512). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 28, 2026). M2.8 Earthquake 57 km W of Petrolia, CA — August 28, 2026. Retrieved September 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75426512/