2.0

M2.0 Earthquake 22 km WSW of Point MacKenzie, AlaskaSeptember 25, 2023

2023-09-25 18:56:28 UTC (2023-09-25) · approx. 8:56 AM UTC-10 local

MagnitudeM2.0(ml)
Time18:56 UTC8:56 AM UTC-10
Depth44.9 kmshallow crustal
Coordinates61.276°, -150.371°
Felt by1DYFI response
Status✓ Reviewed by USGS

On September 25, 2023 at 18:56 UTC, a magnitude 2.0 shallow crustal earthquake struck 22 km WSW of Point MacKenzie, Alaska, at a depth of 44.9 km and coordinates 61.2759°, -150.3706°.

Physical scale: An earthquake of magnitude 2.0 releases seismic energy equivalent to roughly 15.1 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 14 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 61.28°, -150.37°

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 M2.0 earthquake near 22 km WSW of Point MacKenzie, Alaska

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

Earthquake Details

Magnitude
2.0 ml
Depth
44.9 km
shallow crustal
Location
61.2759°N
-150.3706°E
Felt Reports
1
DYFI responses
Community Intensity
2.7
CDI from reports

Technical Information

Event ID
ak023cbj2vh4
Event Type
earthquake
Status
✓ Reviewed
Significance
62
RMS Residual
0.68 sec
Last Updated
2023-10-07 18:25:55 UTC

Common Questions

How strong was the magnitude 2.0 earthquake near Point MacKenzie, Alaska?

The magnitude 2.0 earthquake that struck 22 km WSW of Point MacKenzie, Alaska on September 25, 2023 at 18:56 UTC had a depth of 44.9 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 2.0 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 2.0 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: ak023cbj2vh4). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, September 25, 2023). M2.0 Earthquake 22 km WSW of Point MacKenzie, AlaskaSeptember 25, 2023. Retrieved October 7, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak023cbj2vh4/