M4.6 Earthquake near Saint Thomas, Jamaica — April 15, 2023
2023-04-15 21:35:33 UTC (2023-04-15) · approx. 4:35 PM UTC-5 local
Felt by 45 people across nearby locations.
On April 15, 2023 at 21:35 UTC, a magnitude 4.6 shallow crustal earthquake struck near Saint Thomas, Jamaica, at a depth of 10.0 km and coordinates 17.9151°, -76.4973°. This earthquake was detected by 84 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 352, 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.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 45 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-76.4973°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake near Saint Thomas, Jamaica?
The magnitude 4.6 earthquake that struck near Saint Thomas, Jamaica on April 15, 2023 at 21:35 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 17.9151°, -76.4973°, which is near Saint Thomas, Jamaica.
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.
Authoritative source: USGS event page (event ID: us6000k4sx). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, April 15, 2023). M4.6 Earthquake near Saint Thomas, Jamaica — April 15, 2023. Retrieved May 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000k4sx/