M4.5 Earthquake 90 km E of Codrington, Antigua and Barbuda — December 2, 2022
2022-12-02 19:45:29 UTC (2022-12-02) · approx. 3:45 PM UTC-4 local
On December 2, 2022 at 19:45 UTC, a magnitude 4.5 shallow crustal earthquake struck 90 km E of Codrington, Antigua and Barbuda, at a depth of 17.2 km and coordinates 17.4875°, -60.9964°. This earthquake was detected by 59 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-60.9964°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.5 earthquake near Codrington, Antigua and Barbuda?
The magnitude 4.5 earthquake that struck 90 km E of Codrington, Antigua and Barbuda on December 2, 2022 at 19:45 UTC had a depth of 17.2 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 17.4875°, -60.9964°, which is 90 km E of Codrington, Antigua and Barbuda.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000j6er). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, December 2, 2022). M4.5 Earthquake 90 km E of Codrington, Antigua and Barbuda — December 2, 2022. Retrieved February 5, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000j6er/