M3.1 Earthquake 46 km WSW of Cantwell, Alaska — June 6, 2026
2026-06-06 07:59:27 UTC (1 hour ago) · approx. 9:59 PM UTC-10 local
On June 6, 2026 at 07:59 UTC, a magnitude 3.1 intermediate depth earthquake struck 46 km WSW of Cantwell, Alaska, at a depth of 97.8 km and coordinates 63.2320°, -149.7990°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 674 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 83 m — a useful intuition for the size of the slip patch on the fault.
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.
Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS
Earthquake Details
-149.7990°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.1 earthquake near Cantwell, Alaska?
The magnitude 3.1 earthquake that struck 46 km WSW of Cantwell, Alaska on June 6, 2026 at 07:59 UTC had a depth of 97.8 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 3.1 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.
Actions
Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: aka2026lctkjs). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 6, 2026). M3.1 Earthquake 46 km WSW of Cantwell, Alaska — June 6, 2026. Retrieved June 6, 2026 from https://www.earthquaketracker.org/earthquakes/event/aka2026lctkjs/