4.4

M4.4 Earthquake near Near Islands, Aleutian Islands, AlaskaOctober 18, 2022

2022-10-18 17:33:18 UTC (2022-10-18) · approx. 5:33 AM UTC+12 local

MagnitudeM4.4(mb)
Time17:33 UTC5:33 AM UTC+12
Depth10.0 kmshallow crustal
Coordinates51.632°, 174.706°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 18, 2022 at 17:33 UTC, a magnitude 4.4 shallow crustal earthquake struck near Near Islands, Aleutian Islands, Alaska, at a depth of 10.0 km and coordinates 51.6320°, 174.7057°.

Physical scale: An earthquake of magnitude 4.4 releases seismic energy equivalent to roughly 60 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 655 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 51.63°, 174.71°

Earthquake Details

Magnitude
4.4 mb
Depth
10.0 km
shallow crustal
Location
51.6320°N
174.7057°E

Technical Information

Event ID
us6000iukv
Event Type
earthquake
Status
✓ Reviewed
Significance
298
Stations Used
158
Azimuthal Gap
94.0°
Min Station Distance
1.161°
RMS Residual
0.66 sec
Last Updated
2022-12-31 23:03:23 UTC

Common Questions

How strong was the magnitude 4.4 earthquake near Near Islands, Aleutian Islands, Alaska?

The magnitude 4.4 earthquake that struck near Near Islands, Aleutian Islands, Alaska on October 18, 2022 at 17:33 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.4 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.4 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000iukv). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 18, 2022). M4.4 Earthquake near Near Islands, Aleutian Islands, AlaskaOctober 18, 2022. Retrieved December 31, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000iukv/