M3.0 Earthquake 245 km ESE of Chiniak, Alaska — December 15, 2022
2022-12-15 21:15:34 UTC (2022-12-15) · approx. 11:15 AM UTC-10 local
On December 15, 2022 at 21:15 UTC, a magnitude 3.0 shallow crustal earthquake struck 245 km ESE of Chiniak, Alaska, at a depth of 10.0 km and coordinates 56.6432°, -148.6337°.
Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 477 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 71 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-148.6337°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.0 earthquake near Chiniak, Alaska?
The magnitude 3.0 earthquake that struck 245 km ESE of Chiniak, Alaska on December 15, 2022 at 21:15 UTC had a depth of 10.0 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 3.0 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: us7000j10e). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 15, 2022). M3.0 Earthquake 245 km ESE of Chiniak, Alaska — December 15, 2022. Retrieved February 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j10e/