M2.7 Earthquake 56 km W of Petrolia, CA — August 28, 2026

2026-08-28 21:18:08 UTC (2026-08-28) · approx. 1:18 PM UTC-8 local

MagnitudeM2.7(md)

Time21:18 UTC≈ 1:18 PM UTC-8

Depth19.7 kmshallow crustal

Coordinates40.346°, -124.941°

Felt byNo felt reports

Status✓ Reviewed by USGS

Map showing earthquake epicenter at 40.35°, -124.94°

Earthquake Details

Magnitude

2.7 md

Depth

19.7 km

shallow crustal

Location

40.3455°N
-124.9405°E

Technical Information

Event ID

nc75426507

Event Type

earthquake

Status

✓ Reviewed

Significance

114

Stations Used

Azimuthal Gap

252.0°

Min Station Distance

0.461°

RMS Residual

0.28 sec

Last Updated

2026-09-20 22:36:16 UTC

Nearby Earthquakes (Last 7 Days)

3.4

14 km N of Brooktrails, CA

18 hours ago · 8.5 km deep

2.8

5 km NE of Hydesville, CA

5 days ago · 20.6 km deep

Actions

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Understanding This Data

Magnitude 2.7 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75426507). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 28, 2026). M2.7 Earthquake 56 km W of Petrolia, CA — August 28, 2026. Retrieved September 20, 2026 from https://www.earthquaketracker.org/earthquakes/event/nc75426507/