3.0

M3.0 Earthquake 15 km NE of Chickaloon, AlaskaDecember 23, 2022

2022-12-23 23:41:21 UTC (2022-12-23) · approx. 1:41 PM UTC-10 local

MagnitudeM3.0(ml)
Time23:41 UTC1:41 PM UTC-10
Depth29.7 kmshallow crustal
Coordinates61.905°, -148.277°
Felt by1DYFI response
Status✓ Reviewed by USGS

On December 23, 2022 at 23:41 UTC, a magnitude 3.0 shallow crustal earthquake struck 15 km NE of Chickaloon, Alaska, at a depth of 29.7 km and coordinates 61.9054°, -148.2769°.

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 61.91°, -148.28°

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 15 km NE of Chickaloon, Alaska

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

Earthquake Details

Magnitude
3.0 ml
Depth
29.7 km
shallow crustal
Location
61.9054°N
-148.2769°E
Felt Reports
1
DYFI responses
Community Intensity
2.2
CDI from reports

Technical Information

Event ID
ak022gessp4n
Event Type
earthquake
Status
✓ Reviewed
Significance
139
RMS Residual
0.63 sec
Last Updated
2023-02-28 23:06:49 UTC

Common Questions

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

The magnitude 3.0 earthquake that struck 15 km NE of Chickaloon, Alaska on December 23, 2022 at 23:41 UTC had a depth of 29.7 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: ak022gessp4n). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, December 23, 2022). M3.0 Earthquake 15 km NE of Chickaloon, AlaskaDecember 23, 2022. Retrieved February 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak022gessp4n/