M3.3 Earthquake 52 km W of Stella, Puerto Rico — March 27, 2025
2025-03-27 17:48:41 UTC (2025-03-27) · approx. 12:48 PM UTC-5 local
On March 27, 2025 at 17:48 UTC, a magnitude 3.3 intermediate depth earthquake struck 52 km W of Stella, Puerto Rico, at a depth of 93.1 km and coordinates 18.2388°, -67.7362°.
Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.3 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 110 m — a useful intuition for the size of the slip patch on the fault.

Earthquake Details
-67.7362°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Stella, Puerto Rico?
The magnitude 3.3 earthquake that struck 52 km W of Stella, Puerto Rico on March 27, 2025 at 17:48 UTC had a depth of 93.1 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: pr71477678). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, March 27, 2025). M3.3 Earthquake 52 km W of Stella, Puerto Rico — March 27, 2025. Retrieved June 6, 2025 from https://www.earthquaketracker.org/earthquakes/event/pr71477678/