3.0

M3.0 Earthquake 24 km SW of Chiniak, AlaskaJanuary 29, 2025

2025-01-29 18:59:03 UTC (2025-01-29) · approx. 8:59 AM UTC-10 local

MagnitudeM3.0(ml)
Time18:59 UTC8:59 AM UTC-10
Depth18.4 kmshallow crustal
Coordinates57.432°, -152.533°
Felt by1DYFI response
Status✓ Reviewed by USGS

On January 29, 2025 at 18:59 UTC, a magnitude 3.0 shallow crustal earthquake struck 24 km SW of Chiniak, Alaska, at a depth of 18.4 km and coordinates 57.4323°, -152.5329°.

Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 57.43°, -152.53°

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 M3.0 earthquake near 24 km SW of Chiniak, Alaska

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

Earthquake Details

Magnitude
3.0 ml
Depth
18.4 km
shallow crustal
Location
57.4323°N
-152.5329°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
ak0251c9nitv
Event Type
earthquake
Status
✓ Reviewed
Significance
139
RMS Residual
0.59 sec
Last Updated
2025-04-15 20:55:35 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Chiniak, Alaska?

The magnitude 3.0 earthquake that struck 24 km SW of Chiniak, Alaska on January 29, 2025 at 18:59 UTC had a depth of 18.4 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 3.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak0251c9nitv). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2025, January 29, 2025). M3.0 Earthquake 24 km SW of Chiniak, AlaskaJanuary 29, 2025. Retrieved April 15, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak0251c9nitv/