M4.7 Earthquake 88 km NE of Sainte-Marie, Martinique — December 31, 2023
2023-12-31 11:31:53 UTC (2023-12-31) · approx. 7:31 AM UTC-4 local
Felt by 5 people across nearby locations.
On December 31, 2023 at 11:31 UTC, a magnitude 4.7 shallow crustal earthquake struck 88 km NE of Sainte-Marie, Martinique, at a depth of 39.5 km and coordinates 15.3515°, -60.4138°. This earthquake was detected by 105 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 341, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — 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 5 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
-60.4138°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Sainte-Marie, Martinique?
The magnitude 4.7 earthquake that struck 88 km NE of Sainte-Marie, Martinique on December 31, 2023 at 11:31 UTC had a depth of 39.5 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 15.3515°, -60.4138°, which is 88 km NE of Sainte-Marie, Martinique.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us6000m0ti). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, December 31, 2023). M4.7 Earthquake 88 km NE of Sainte-Marie, Martinique — December 31, 2023. Retrieved March 2, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000m0ti/