3.0

M3.0 Earthquake 60 km ESE of Ugashik, AlaskaApril 21, 2026

2026-04-21 05:04:22 UTC (2 hours ago)

On April 21, 2026 at 05:04 UTC, a magnitude 3.0 shallow crustal earthquake struck 60 km ESE of Ugashik, Alaska, at a depth of 5.0 km and coordinates 57.2220°, -156.5550°.

Map showing earthquake epicenter at 57.22°, -156.56°

Earthquake Details

Magnitude
3.0 ml
Depth
5.0 km
shallow crustal
Location
57.2220°N
-156.5550°E

Technical Information

Event ID
aka2026huhzcp
Event Type
earthquake
Status
Automatic
Significance
138
Stations Used
43
Azimuthal Gap
189.0°
Min Station Distance
0.400°
RMS Residual
0.50 sec
Last Updated
2026-04-21 05:56:35 UTC

Common Questions

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

The magnitude 3.0 earthquake that struck 60 km ESE of Ugashik, Alaska on April 21, 2026 at 05:04 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 3.0 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.