2.8

M2.8 Earthquake 43 km WNW of Petrolia, CA — July 21, 2023

2023-07-21 18:59:02 UTC (2023-07-21) · approx. 10:59 AM UTC-8 local

MagnitudeM2.8(md)
Time18:59 UTC≈ 10:59 AM UTC-8
Depth19.2 kmshallow crustal
Coordinates40.405°, -124.784°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.41°, -124.78°

Earthquake Details

Magnitude
2.8 md
Depth
19.2 km
shallow crustal
Location
40.4052°N
-124.7837°E

Technical Information

Event ID
nc73915306
Event Type
earthquake
Status
✓ Reviewed
Significance
119
Stations Used
61
Azimuthal Gap
226.0°
Min Station Distance
0.348°
RMS Residual
0.18 sec
Last Updated
2023-09-28 21:34:04 UTC

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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: nc73915306). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, July 21, 2023). M2.8 Earthquake 43 km WNW of Petrolia, CA — July 21, 2023. Retrieved September 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/nc73915306/