M3.1 Earthquake 115 km E of Chignik, Alaska — June 26, 2025
2025-06-26 14:58:12 UTC (2025-06-26) · approx. 4:58 AM UTC-10 local
On June 26, 2025 at 14:58 UTC, a magnitude 3.1 shallow crustal earthquake struck 115 km E of Chignik, Alaska, at a depth of 53.8 km and coordinates 56.2493°, -156.5461°.
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.
Earthquake Details
-156.5461°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.1 earthquake near Chignik, Alaska?
The magnitude 3.1 earthquake that struck 115 km E of Chignik, Alaska on June 26, 2025 at 14:58 UTC had a depth of 53.8 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.
Actions
Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: ak02584ysyd6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, June 26, 2025). M3.1 Earthquake 115 km E of Chignik, Alaska — June 26, 2025. Retrieved September 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/ak02584ysyd6/