2.8

M2.8 Earthquake 35km WNW of Petrolia, CA — May 4, 2021

2021-05-04 21:38:50 UTC (2021-05-04) · approx. 1:38 PM UTC-8 local

MagnitudeM2.8(md)
Time21:38 UTC≈ 1:38 PM UTC-8
Depth23.2 kmshallow crustal
Coordinates40.422°, -124.679°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.42°, -124.68°

Earthquake Details

Magnitude
2.8 md
Depth
23.2 km
shallow crustal
Location
40.4223°N
-124.6793°E

Technical Information

Event ID
nc73558175
Event Type
earthquake
Status
✓ Reviewed
Significance
117
Stations Used
25
Azimuthal Gap
237.0°
Min Station Distance
0.266°
RMS Residual
0.09 sec
Last Updated
2021-07-10 20:15:25 UTC

Nearby Earthquakes (Last 7 Days)

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2.7
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2.6
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3.3
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1 day ago · 3.4 km deep
2.7
10 km W of Boonville, CA
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3.7
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2 days ago · 4.8 km deep
2.6
2 km NW of Hollister, CA
5 days ago · 6.1 km deep
2.8
1 km WNW of Sun Valley, Nevada
5 days ago · 5.1 km deep
2.5
40 km W of Petrolia, CA
6 days ago · 2.0 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: nc73558175). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, May 4, 2021). M2.8 Earthquake 35km WNW of Petrolia, CA — May 4, 2021. Retrieved July 10, 2021 from https://www.earthquaketracker.org/earthquakes/event/nc73558175/