2.7

M2.7 Earthquake 12 km E of Red Bluff, CAJanuary 23, 2025

2025-01-23 14:05:21 UTC (2025-01-23) · approx. 6:05 AM UTC-8 local

MagnitudeM2.7(md)
Time14:05 UTC6:05 AM UTC-8
Depth27.3 kmshallow crustal
Coordinates40.197°, -122.101°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On January 23, 2025 at 14:05 UTC, a magnitude 2.7 shallow crustal earthquake struck 12 km E of Red Bluff, CA, at a depth of 27.3 km and coordinates 40.1975°, -122.1013°.

Physical scale: An earthquake of magnitude 2.7 releases seismic energy equivalent to roughly 147 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 41 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 40.20°, -122.10°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 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 M2.7 earthquake near 12 km E of Red Bluff, CA

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

Earthquake Details

Magnitude
2.7 md
Depth
27.3 km
shallow crustal
Location
40.1975°N
-122.1013°E
Felt Reports
2
DYFI responses
Community Intensity
3.1
CDI from reports

Technical Information

Event ID
nc75121701
Event Type
earthquake
Status
✓ Reviewed
Significance
109
Stations Used
47
Azimuthal Gap
47.0°
Min Station Distance
0.022°
RMS Residual
0.25 sec
Last Updated
2025-04-08 22:00:58 UTC

Common Questions

How strong was the magnitude 2.7 earthquake near Red Bluff, CA?

The magnitude 2.7 earthquake that struck 12 km E of Red Bluff, CA on January 23, 2025 at 14:05 UTC had a depth of 27.3 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 2.7 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.7 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: nc75121701). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, January 23, 2025). M2.7 Earthquake 12 km E of Red Bluff, CAJanuary 23, 2025. Retrieved April 8, 2025 from https://www.earthquaketracker.org/earthquakes/event/nc75121701/