M3.2 Earthquake 9 km S of Santa Isabel, Puerto Rico — June 27, 2025
2025-06-27 21:08:21 UTC (2025-06-27) · approx. 5:08 PM UTC-4 local
On June 27, 2025 at 21:08 UTC, a magnitude 3.2 shallow crustal earthquake struck 9 km S of Santa Isabel, Puerto Rico, at a depth of 37.6 km and coordinates 17.8847°, -66.3963°.
Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 829 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 91 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.3963°E
Technical Information
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Common Questions
How strong was the magnitude 3.2 earthquake near Santa Isabel, Puerto Rico?
The magnitude 3.2 earthquake that struck 9 km S of Santa Isabel, Puerto Rico on June 27, 2025 at 21:08 UTC had a depth of 37.6 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 3.2 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.2 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71487368). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2025, June 27, 2025). M3.2 Earthquake 9 km S of Santa Isabel, Puerto Rico — June 27, 2025. Retrieved September 4, 2025 from https://www.earthquaketracker.org/earthquakes/event/pr71487368/