M3.3 Earthquake 15 km NNW of Brenas, Puerto Rico — November 13, 2022
2022-11-13 20:43:29 UTC (2022-11-13) · approx. 4:43 PM UTC-4 local
On November 13, 2022 at 20:43 UTC, a magnitude 3.3 intermediate depth earthquake struck 15 km NNW of Brenas, Puerto Rico, at a depth of 70.3 km and coordinates 18.5998°, -66.3763°.
Physical scale: An earthquake of magnitude 3.3 releases seismic energy equivalent to roughly 1.4 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 116 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.3763°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near Brenas, Puerto Rico?
The magnitude 3.3 earthquake that struck 15 km NNW of Brenas, Puerto Rico on November 13, 2022 at 20:43 UTC had a depth of 70.3 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: pr71382158). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, November 13, 2022). M3.3 Earthquake 15 km NNW of Brenas, Puerto Rico — November 13, 2022. Retrieved January 28, 2023 from https://www.earthquaketracker.org/earthquakes/event/pr71382158/