3.0

M3.0 Earthquake 128 km NNW of Ambler, AlaskaOctober 27, 2023

2023-10-27 23:10:45 UTC (2023-10-27) · approx. 12:10 PM UTC-11 local

MagnitudeM3.0(ml)
Time23:10 UTC12:10 PM UTC-11
Depth5.1 kmshallow crustal
Coordinates68.192°, -158.691°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 27, 2023 at 23:10 UTC, a magnitude 3.0 shallow crustal earthquake struck 128 km NNW of Ambler, Alaska, at a depth of 5.1 km and coordinates 68.1925°, -158.6913°.

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 68.19°, -158.69°

Earthquake Details

Magnitude
3.0 ml
Depth
5.1 km
shallow crustal
Location
68.1925°N
-158.6913°E

Technical Information

Event ID
ak023dsizc2t
Event Type
earthquake
Status
✓ Reviewed
Significance
138
RMS Residual
0.65 sec
Last Updated
2024-01-04 04:22:29 UTC

Common Questions

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

The magnitude 3.0 earthquake that struck 128 km NNW of Ambler, Alaska on October 27, 2023 at 23:10 UTC had a depth of 5.1 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: ak023dsizc2t). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, October 27, 2023). M3.0 Earthquake 128 km NNW of Ambler, AlaskaOctober 27, 2023. Retrieved January 4, 2024 from https://www.earthquaketracker.org/earthquakes/event/ak023dsizc2t/