M3.3 Earthquake 16 km NW of Culebra, Puerto Rico — January 6, 2023
2023-01-06 22:48:08 UTC (2023-01-06) · approx. 6:48 PM UTC-4 local
On January 6, 2023 at 22:48 UTC, a magnitude 3.3 intermediate depth earthquake struck 16 km NW of Culebra, Puerto Rico, at a depth of 102.5 km and coordinates 18.4038°, -65.4210°.
Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.2 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 109 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-65.4210°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Culebra, Puerto Rico?
The magnitude 3.3 earthquake that struck 16 km NW of Culebra, Puerto Rico on January 6, 2023 at 22:48 UTC had a depth of 102.5 km. For context, this was a minor earthquake typically detected only by instruments.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.3 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.3 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71391298). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, January 6, 2023). M3.3 Earthquake 16 km NW of Culebra, Puerto Rico — January 6, 2023. Retrieved January 7, 2023 from https://www.earthquaketracker.org/earthquakes/event/pr71391298/