2.3

M2.3 Earthquake 19km WSW of Ferndale, CAJune 13, 2023

2023-06-13 22:51:41 UTC (2023-06-13) · approx. 2:51 PM UTC-8 local

MagnitudeM2.3(md)
Time22:51 UTC2:51 PM UTC-8
Depth16.4 kmshallow crustal
Coordinates40.505°, -124.468°
Felt by1DYFI response
Status✓ Reviewed by USGS

On June 13, 2023 at 22:51 UTC, a magnitude 2.3 shallow crustal earthquake struck 19km WSW of Ferndale, CA, at a depth of 16.4 km and coordinates 40.5053°, -124.4677°.

Physical scale: An earthquake of magnitude 2.3 releases seismic energy equivalent to roughly 37.0 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 22 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 40.51°, -124.47°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response 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 M2.3 earthquake near 19km WSW of Ferndale, CA

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

Earthquake Details

Magnitude
2.3 md
Depth
16.4 km
shallow crustal
Location
40.5053°N
-124.4677°E
Felt Reports
1
DYFI responses
Community Intensity
2.0
CDI from reports

Technical Information

Event ID
nc73900836
Event Type
earthquake
Status
✓ Reviewed
Significance
79
Stations Used
27
Azimuthal Gap
222.0°
Min Station Distance
0.104°
RMS Residual
0.11 sec
Last Updated
2023-06-15 01:19:12 UTC

Common Questions

How strong was the magnitude 2.3 earthquake near Ferndale, CA?

The magnitude 2.3 earthquake that struck 19km WSW of Ferndale, CA on June 13, 2023 at 22:51 UTC had a depth of 16.4 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 2.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.3 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc73900836). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, June 13, 2023). M2.3 Earthquake 19km WSW of Ferndale, CAJune 13, 2023. Retrieved June 15, 2023 from https://www.earthquaketracker.org/earthquakes/event/nc73900836/