M4.2 Earthquake 41 km NE of Sainte-Marie, Martinique — December 2, 2020
2020-12-02 20:50:01 UTC (2020-12-02) · approx. 4:50 PM UTC-4 local
On December 2, 2020 at 20:50 UTC, a magnitude 4.2 intermediate depth earthquake struck 41 km NE of Sainte-Marie, Martinique, at a depth of 74.3 km and coordinates 15.0657°, -60.7402°.
Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-60.7402°E
Technical Information
Common Questions
How strong was the magnitude 4.2 earthquake near Sainte-Marie, Martinique?
The magnitude 4.2 earthquake that struck 41 km NE of Sainte-Marie, Martinique on December 2, 2020 at 20:50 UTC had a depth of 74.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.2 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us7000cm9u). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 2, 2020). M4.2 Earthquake 41 km NE of Sainte-Marie, Martinique — December 2, 2020. Retrieved February 12, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000cm9u/