M3.0 Earthquake 83 km NW of San Antonio, Puerto Rico — November 22, 2020
2020-11-22 22:05:53 UTC (2020-11-22) · approx. 5:05 PM UTC-5 local
On November 22, 2020 at 22:05 UTC, a magnitude 3.0 shallow crustal earthquake struck 83 km NW of San Antonio, Puerto Rico, at a depth of 58.0 km and coordinates 18.9621°, -67.7146°.
Physical scale: An earthquake of magnitude 3.0 releases seismic energy equivalent to roughly 567 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 77 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-67.7146°E
Technical Information
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Common Questions
How strong was the magnitude 3.0 earthquake near San Antonio, Puerto Rico?
The magnitude 3.0 earthquake that struck 83 km NW of San Antonio, Puerto Rico on November 22, 2020 at 22:05 UTC had a depth of 58.0 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 3.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2020327024). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, November 22, 2020). M3.0 Earthquake 83 km NW of San Antonio, Puerto Rico — November 22, 2020. Retrieved November 22, 2020 from https://www.earthquaketracker.org/earthquakes/event/pr2020327024/