2.9

M2.9 Earthquake 15km NW of Petrolia, CA — December 23, 2021

2021-12-23 18:32:59 UTC (2021-12-23) · approx. 10:32 AM UTC-8 local

MagnitudeM2.9(mh)
Time18:32 UTC≈ 10:32 AM UTC-8
Depth27.2 kmshallow crustal
Coordinates40.434°, -124.383°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.43°, -124.38°

Earthquake Details

Magnitude
2.9 mh
Depth
27.2 km
shallow crustal
Location
40.4337°N
-124.3827°E

Technical Information

Event ID
nc73668111
Event Type
earthquake
Status
✓ Reviewed
Significance
129
Stations Used
10
Azimuthal Gap
237.0°
Min Station Distance
0.054°
RMS Residual
0.11 sec
Last Updated
2021-12-28 22:26:12 UTC

Nearby Earthquakes (Last 7 Days)

2.6
21 km E of Alum Rock, CA
3 hours ago · 6.3 km deep
3.5
20 km WSW of Petrolia, CA
16 hours ago · 20.1 km deep
3.8
20 km WSW of Gerlach, Nevada
23 hours ago · 7.0 km deep
2.7
3 km ESE of Santa Rosa, CA
1 day ago · 9.1 km deep
3.3
17 km WSW of Petrolia, CA
1 day ago · 9.0 km deep
2.6
7 km E of Hydesville, CA
2 days ago · 24.2 km deep
3.3
19 km WSW of Gerlach, Nevada
2 days ago · 11.0 km deep
3.0
9 km SW of Brentwood, CA
2 days ago · 16.9 km deep
2.5
9 km SW of Brentwood, CA
3 days ago · 16.8 km deep
2.6
18 km SE of Silver Springs, Nevada
3 days ago · 7.4 km deep

Actions

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Understanding This Data

Magnitude 2.9 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc73668111). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, December 23, 2021). M2.9 Earthquake 15km NW of Petrolia, CA — December 23, 2021. Retrieved December 28, 2021 from https://www.earthquaketracker.org/earthquakes/event/nc73668111/