M4.6 Earthquake near Leeward Islands — February 12, 2023
2023-02-12 19:28:44 UTC (2023-02-12) · approx. 3:28 PM UTC-4 local
On February 12, 2023 at 19:28 UTC, a magnitude 4.6 shallow crustal earthquake struck near Leeward Islands, at a depth of 32.3 km and coordinates 17.1552°, -61.0709°. This earthquake was detected by 111 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-61.0709°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.6 earthquake near Leeward Islands?
The magnitude 4.6 earthquake that struck near Leeward Islands on February 12, 2023 at 19:28 UTC had a depth of 32.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 17.1552°, -61.0709°, which is near Leeward Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000jnha). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, February 12, 2023). M4.6 Earthquake near Leeward Islands — February 12, 2023. Retrieved April 22, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000jnha/