M3.2 Earthquake 75 km N of Arecibo, Puerto Rico — October 10, 2022
2022-10-10 22:13:38 UTC (2022-10-10) · approx. 6:13 PM UTC-4 local
On October 10, 2022 at 22:13 UTC, a magnitude 3.2 shallow crustal earthquake struck 75 km N of Arecibo, Puerto Rico, at a depth of 20.2 km and coordinates 19.1425°, -66.5925°.
Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 985 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 99 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.5925°E
Technical Information
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Common Questions
How strong was the magnitude 3.2 earthquake near Arecibo, Puerto Rico?
The magnitude 3.2 earthquake that struck 75 km N of Arecibo, Puerto Rico on October 10, 2022 at 22:13 UTC had a depth of 20.2 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 3.2 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: pr71376078). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, October 10, 2022). M3.2 Earthquake 75 km N of Arecibo, Puerto Rico — October 10, 2022. Retrieved October 10, 2022 from https://www.earthquaketracker.org/earthquakes/event/pr71376078/