M4.1 Earthquake 236 km ESE of Attu Station, Alaska — April 17, 2026
2026-04-17 21:12:54 UTC (1 day ago)
On April 17, 2026 at 21:12 UTC, a magnitude 4.1 shallow crustal earthquake struck 236 km ESE of Attu Station, Alaska, at a depth of 10.0 km and coordinates 51.9022°, 176.3053°.

Earthquake Details
176.3053°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.1 earthquake near Attu Station, Alaska?
The magnitude 4.1 earthquake that struck 236 km ESE of Attu Station, Alaska on April 17, 2026 at 21:12 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 4.1 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.
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Understanding This Data
Magnitude 4.1 earthquakes are often felt but rarely cause damage.