M3.0 Earthquake 169 km SE of King Cove, Alaska — December 20, 2022
2022-12-20 19:58:10 UTC (2022-12-20) · approx. 8:58 AM UTC-11 local
On December 20, 2022 at 19:58 UTC, a magnitude 3.0 shallow crustal earthquake struck 169 km SE of King Cove, Alaska, at a depth of 19.0 km and coordinates 53.8059°, -160.8262°.
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
-160.8262°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.0 earthquake near King Cove, Alaska?
The magnitude 3.0 earthquake that struck 169 km SE of King Cove, Alaska on December 20, 2022 at 19:58 UTC had a depth of 19.0 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: us7000j2px). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 20, 2022). M3.0 Earthquake 169 km SE of King Cove, Alaska — December 20, 2022. Retrieved February 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j2px/