M3.4 Earthquake 36 km WSW of Stella, Puerto Rico — August 29, 2026
2026-08-29 23:11:08 UTC (56 min ago) · approx. 6:11 PM UTC-5 local
On August 29, 2026 at 23:11 UTC, a magnitude 3.4 intermediate depth earthquake struck 36 km WSW of Stella, Puerto Rico, at a depth of 112.1 km and coordinates 18.2475°, -67.5870°.
Physical scale: An earthquake of magnitude 3.4 releases seismic energy equivalent to roughly 1.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 123 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-67.5870°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.4 earthquake near Stella, Puerto Rico?
The magnitude 3.4 earthquake that struck 36 km WSW of Stella, Puerto Rico on August 29, 2026 at 23:11 UTC had a depth of 112.1 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 3.4 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.4 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr71530283). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, August 29, 2026). M3.4 Earthquake 36 km WSW of Stella, Puerto Rico — August 29, 2026. Retrieved August 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/pr71530283/