M3.1 Earthquake 4 km SSW of La Parguera, Puerto Rico — October 5, 2020
2020-10-05 22:01:29 UTC (2020-10-05) · approx. 6:01 PM UTC-4 local
On October 5, 2020 at 22:01 UTC, a magnitude 3.1 shallow crustal earthquake struck 4 km SSW of La Parguera, Puerto Rico, at a depth of 11.0 km and coordinates 17.9355°, -67.0628°.
Physical scale: An earthquake of magnitude 3.1 releases seismic energy equivalent to roughly 607 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 79 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-67.0628°E
Technical Information
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Common Questions
How strong was the magnitude 3.1 earthquake near La Parguera, Puerto Rico?
The magnitude 3.1 earthquake that struck 4 km SSW of La Parguera, Puerto Rico on October 5, 2020 at 22:01 UTC had a depth of 11.0 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 3.1 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: pr2020279016). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, October 5, 2020). M3.1 Earthquake 4 km SSW of La Parguera, Puerto Rico — October 5, 2020. Retrieved December 12, 2020 from https://www.earthquaketracker.org/earthquakes/event/pr2020279016/