2.5

M2.5 Earthquake 5 km NE of Westmorland, CAFebruary 17, 2024

2024-02-17 23:25:04 UTC (2024-02-17) · approx. 3:25 PM UTC-8 local

MagnitudeM2.5(ml)
Time23:25 UTC3:25 PM UTC-8
Depth10.6 kmshallow crustal
Coordinates33.072°, -115.587°
Felt by5DYFI responses
Status✓ Reviewed by USGS

On February 17, 2024 at 23:25 UTC, a magnitude 2.5 shallow crustal earthquake struck 5 km NE of Westmorland, CA, at a depth of 10.6 km and coordinates 33.0720°, -115.5872°.

Physical scale: An earthquake of magnitude 2.5 releases seismic energy equivalent to roughly 97.4 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 34 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 33.07°, -115.59°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 5 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M2.5 earthquake near 5 km NE of Westmorland, CA

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
2.5 ml
Depth
10.6 km
shallow crustal
Location
33.0720°N
-115.5872°E
Felt Reports
5
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
ci40672248
Event Type
earthquake
Status
✓ Reviewed
Significance
101
Stations Used
53
Azimuthal Gap
40.0°
Min Station Distance
0.034°
RMS Residual
0.24 sec
Last Updated
2024-04-24 14:41:59 UTC

Common Questions

How strong was the magnitude 2.5 earthquake near Westmorland, CA?

The magnitude 2.5 earthquake that struck 5 km NE of Westmorland, CA on February 17, 2024 at 23:25 UTC had a depth of 10.6 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 2.5 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.5 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ci40672248). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, February 17, 2024). M2.5 Earthquake 5 km NE of Westmorland, CAFebruary 17, 2024. Retrieved April 24, 2024 from https://www.earthquaketracker.org/earthquakes/event/ci40672248/