M3.2 Earthquake 27 km N of Isabela, Puerto Rico — September 7, 2026
2026-09-07 20:10:15 UTC (48 min ago) · approx. 4:10 PM UTC-4 local
On September 7, 2026 at 20:10 UTC, a magnitude 3.2 shallow crustal earthquake struck 27 km N of Isabela, Puerto Rico, at a depth of 13.9 km and coordinates 18.7437°, -66.9952°.
Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 858 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 93 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.9952°E
Technical Information
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Common Questions
How strong was the magnitude 3.2 earthquake near Isabela, Puerto Rico?
The magnitude 3.2 earthquake that struck 27 km N of Isabela, Puerto Rico on September 7, 2026 at 20:10 UTC had a depth of 13.9 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: pr71531158). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, September 7, 2026). M3.2 Earthquake 27 km N of Isabela, Puerto Rico — September 7, 2026. Retrieved September 7, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71531158/