3.6

M3.6 Earthquake 109 km N of Yakutat, AlaskaFebruary 24, 2026

2026-02-24 23:09:26 UTC (2026-02-24) · approx. 2:09 PM UTC-9 local

MagnitudeM3.6(mwr)
Time23:09 UTC2:09 PM UTC-9
Depth5.0 kmshallow crustal
Coordinates60.529°, -139.852°
Felt byNo felt reports
Status✓ Reviewed by USGS

On February 24, 2026 at 23:09 UTC, a magnitude 3.6 shallow crustal earthquake struck 109 km N of Yakutat, Alaska, at a depth of 5.0 km and coordinates 60.5294°, -139.8520°.

Physical scale: An earthquake of magnitude 3.6 releases seismic energy equivalent to roughly 3.8 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 184 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 60.53°, -139.85°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M3.6 earthquake near 109 km N of Yakutat, Alaska

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
3.6 mwr
Depth
5.0 km
shallow crustal
Location
60.5294°N
-139.8520°E
Intensity (MMI)
4.1
moderate

Technical Information

Event ID
us7000s03f
Event Type
earthquake
Status
✓ Reviewed
Significance
199
Stations Used
48
Azimuthal Gap
59.0°
Min Station Distance
0.478°
RMS Residual
0.97 sec
Last Updated
2026-05-12 17:28:17 UTC

Common Questions

How strong was the magnitude 3.6 earthquake near Yakutat, Alaska?

The magnitude 3.6 earthquake that struck 109 km N of Yakutat, Alaska on February 24, 2026 at 23:09 UTC had a depth of 5.0 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 3.6 earthquakes can continue for several days and gradually diminish over time.

What should I do after an earthquake?

If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.

Authoritative source: USGS event page (event ID: us7000s03f). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, February 24, 2026). M3.6 Earthquake 109 km N of Yakutat, AlaskaFebruary 24, 2026. Retrieved May 16, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000s03f/