M5.2 Earthquake 95 km E of Codrington, Antigua and Barbuda — December 20, 2022
2022-12-20 12:28:08 UTC (2022-12-20) · approx. 8:28 AM UTC-4 local
On December 20, 2022 at 12:28 UTC, a magnitude 5.2 shallow crustal earthquake struck 95 km E of Codrington, Antigua and Barbuda, at a depth of 13.7 km and coordinates 17.7098°, -60.9317°. This earthquake was detected by 149 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 416, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-60.9317°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.2 earthquake near Codrington, Antigua and Barbuda?
The magnitude 5.2 earthquake that struck 95 km E of Codrington, Antigua and Barbuda on December 20, 2022 at 12:28 UTC had a depth of 13.7 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at 17.7098°, -60.9317°, which is 95 km E of Codrington, Antigua and Barbuda.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000jaj6). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 20, 2022). M5.2 Earthquake 95 km E of Codrington, Antigua and Barbuda — December 20, 2022. Retrieved January 18, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000jaj6/