M3.5 Earthquake 121 km N of San Juan, Puerto Rico — February 19, 2022
2022-02-19 22:53:38 UTC (2022-02-19) · approx. 6:53 PM UTC-4 local
On February 19, 2022 at 22:53 UTC, a magnitude 3.5 shallow crustal earthquake struck 121 km N of San Juan, Puerto Rico, at a depth of 52.0 km and coordinates 19.5595°, -66.1123°.
Physical scale: An earthquake of magnitude 3.5 releases seismic energy equivalent to roughly 3.0 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 164 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-66.1123°E
Technical Information
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Common Questions
How strong was the magnitude 3.5 earthquake near San Juan, Puerto Rico?
The magnitude 3.5 earthquake that struck 121 km N of San Juan, Puerto Rico on February 19, 2022 at 22:53 UTC had a depth of 52.0 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 3.5 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.5 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2022050001). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, February 19, 2022). M3.5 Earthquake 121 km N of San Juan, Puerto Rico — February 19, 2022. Retrieved February 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/pr2022050001/