2.4

M2.4 Earthquake 15 km E of Johnstonville, CA — September 15, 2023

2023-09-15 21:45:36 UTC (2023-09-15) · approx. 1:45 PM UTC-8 local

MagnitudeM2.4(md)
Time21:45 UTC≈ 1:45 PM UTC-8
Depth-1.7 kmshallow crustal
Coordinates40.409°, -120.412°
Felt byNo felt reports
Status✓ Reviewed by USGS
Map showing earthquake epicenter at 40.41°, -120.41°

Earthquake Details

Magnitude
2.4 md
Depth
-1.7 km
shallow crustal
Location
40.4092°N
-120.4122°E

Technical Information

Event ID
nc73937221
Event Type
quarry blast
Status
✓ Reviewed
Significance
85
Stations Used
11
Azimuthal Gap
164.0°
Min Station Distance
0.056°
RMS Residual
0.09 sec
Last Updated
2023-09-18 16:21:34 UTC

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Actions

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Understanding This Data

Magnitude 2.4 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc73937221). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, September 15, 2023). M2.4 Earthquake 15 km E of Johnstonville, CA — September 15, 2023. Retrieved September 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/nc73937221/