M3.3 Earthquake 6 km WSW of La Parguera, Puerto Rico — October 24, 2021
2021-10-24 16:16:58 UTC (2021-10-24) · approx. 12:16 PM UTC-4 local
On October 24, 2021 at 16:16 UTC, a magnitude 3.3 shallow crustal earthquake struck 6 km WSW of La Parguera, Puerto Rico, at a depth of 9.0 km and coordinates 17.9605°, -67.1071°.
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 112 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-67.1071°E
Technical Information
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Common Questions
How strong was the magnitude 3.3 earthquake near La Parguera, Puerto Rico?
The magnitude 3.3 earthquake that struck 6 km WSW of La Parguera, Puerto Rico on October 24, 2021 at 16:16 UTC had a depth of 9.0 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: pr2021297005). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 24, 2021). M3.3 Earthquake 6 km WSW of La Parguera, Puerto Rico — October 24, 2021. Retrieved January 8, 2022 from https://www.earthquaketracker.org/earthquakes/event/pr2021297005/