M3.1 Earthquake 280 km SE of Chiniak, Alaska — March 15, 2024
2024-03-15 18:08:32 UTC (2024-03-15) · approx. 8:08 AM UTC-10 local
On March 15, 2024 at 18:08 UTC, a magnitude 3.1 shallow crustal earthquake struck 280 km SE of Chiniak, Alaska, at a depth of 12.3 km and coordinates 55.7522°, -149.2004°.
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
-149.2004°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.1 earthquake near Chiniak, Alaska?
The magnitude 3.1 earthquake that struck 280 km SE of Chiniak, Alaska on March 15, 2024 at 18:08 UTC had a depth of 12.3 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: us7000m9gv). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, March 15, 2024). M3.1 Earthquake 280 km SE of Chiniak, Alaska — March 15, 2024. Retrieved May 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us7000m9gv/