3.0

M3.0 Earthquake near Central AlaskaOctober 30, 2022

2022-10-30 17:29:46 UTC (2022-10-30) · approx. 7:29 AM UTC-10 local

MagnitudeM3.0(ml)
Time17:29 UTC7:29 AM UTC-10
Depth127.8 kmintermediate depth
Coordinates63.185°, -150.780°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 30, 2022 at 17:29 UTC, a magnitude 3.0 intermediate depth earthquake struck near Central Alaska, at a depth of 127.8 km and coordinates 63.1854°, -150.7804°.

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 63.19°, -150.78°

Earthquake Details

Magnitude
3.0 ml
Depth
127.8 km
intermediate depth
Location
63.1854°N
-150.7804°E

Technical Information

Event ID
ak022dxe4u7z
Event Type
earthquake
Status
✓ Reviewed
Significance
138
RMS Residual
0.49 sec
Last Updated
2023-01-12 23:10:40 UTC

Common Questions

How strong was the magnitude 3.0 earthquake near Central Alaska?

The magnitude 3.0 earthquake that struck near Central Alaska on October 30, 2022 at 17:29 UTC had a depth of 127.8 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: ak022dxe4u7z). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 30, 2022). M3.0 Earthquake near Central AlaskaOctober 30, 2022. Retrieved January 12, 2023 from https://www.earthquaketracker.org/earthquakes/event/ak022dxe4u7z/