M3.7 Earthquake 131 km SE of Attu Station, Alaska — April 12, 2025
2025-04-12 23:54:45 UTC (2025-04-12) · approx. 11:54 AM UTC+12 local
On April 12, 2025 at 23:54 UTC, a magnitude 3.7 shallow crustal earthquake struck 131 km SE of Attu Station, Alaska, at a depth of 51.2 km and coordinates 52.0344°, 174.5812°.
Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.4 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 215 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
174.5812°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.7 earthquake near Attu Station, Alaska?
The magnitude 3.7 earthquake that struck 131 km SE of Attu Station, Alaska on April 12, 2025 at 23:54 UTC had a depth of 51.2 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 3.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.7 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000pv2m). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, April 12, 2025). M3.7 Earthquake 131 km SE of Attu Station, Alaska — April 12, 2025. Retrieved June 14, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000pv2m/