3.4

M3.4 Earthquake 114 km ESE of Yakutat, AlaskaApril 30, 2026

2026-04-30 10:56:10 UTC (1 hour ago) · approx. 1:56 AM UTC-9 local

MagnitudeM3.4(ml)
Time10:56 UTC1:56 AM UTC-9
Depth0.9 kmshallow crustal
Coordinates59.016°, -138.014°
Felt byNo felt reports
StatusAutomatic (preliminary)

On April 30, 2026 at 10:56 UTC, a magnitude 3.4 shallow crustal earthquake struck 114 km ESE of Yakutat, Alaska, at a depth of 0.9 km and coordinates 59.0160°, -138.0140°.

Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.9 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 134 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 59.02°, -138.01°

Earthquake Details

Magnitude
3.4 ml
Depth
0.9 km
shallow crustal
Location
59.0160°N
-138.0140°E

Technical Information

Event ID
aka2026imqmpu
Event Type
earthquake
Status
Automatic
Significance
178
Stations Used
49
Azimuthal Gap
148.0°
Min Station Distance
0.100°
RMS Residual
0.90 sec
Last Updated
2026-04-30 10:58:50 UTC

Common Questions

How strong was the magnitude 3.4 earthquake near Yakutat, Alaska?

The magnitude 3.4 earthquake that struck 114 km ESE of Yakutat, Alaska on April 30, 2026 at 10:56 UTC had a depth of 0.9 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 3.4 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: aka2026imqmpu). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, April 30, 2026). M3.4 Earthquake 114 km ESE of Yakutat, AlaskaApril 30, 2026. Retrieved April 30, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026imqmpu/