M3.3 Earthquake 24 km ESE of Isabel Segunda, Puerto Rico — October 24, 2026
2026-10-24 06:49:32 UTC (1 hour ago) · approx. 2:49 AM UTC-4 local
On October 24, 2026 at 06:49 UTC, a magnitude 3.3 intermediate depth earthquake struck 24 km ESE of Isabel Segunda, Puerto Rico, at a depth of 152.3 km and coordinates 18.0613°, -65.2342°.
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 114 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-65.2342°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Isabel Segunda, Puerto Rico?
The magnitude 3.3 earthquake that struck 24 km ESE of Isabel Segunda, Puerto Rico on October 24, 2026 at 06:49 UTC had a depth of 152.3 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: pr71537553). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 24, 2026). M3.3 Earthquake 24 km ESE of Isabel Segunda, Puerto Rico — October 24, 2026. Retrieved October 24, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71537553/