M3.1 Earthquake 5 km N of Brenas, Puerto Rico — October 6, 2024
2024-10-06 22:30:14 UTC (2024-10-06) · approx. 6:30 PM UTC-4 local
On October 6, 2024 at 22:30 UTC, a magnitude 3.1 shallow crustal earthquake struck 5 km N of Brenas, Puerto Rico, at a depth of 44.2 km and coordinates 18.5143°, -66.3437°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 587 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 78 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.3437°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near Brenas, Puerto Rico?
The magnitude 3.1 earthquake that struck 5 km N of Brenas, Puerto Rico on October 6, 2024 at 22:30 UTC had a depth of 44.2 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 3.1 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.1 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71461953). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, October 6, 2024). M3.1 Earthquake 5 km N of Brenas, Puerto Rico — October 6, 2024. Retrieved October 6, 2024 from https://www.earthquaketracker.org/earthquakes/event/pr71461953/