M3.7 Earthquake 97 km N of San Juan, Puerto Rico — January 11, 2024
2024-01-11 21:11:53 UTC (2024-01-11) · approx. 5:11 PM UTC-4 local
On January 11, 2024 at 21:11 UTC, a magnitude 3.7 intermediate depth earthquake struck 97 km N of San Juan, Puerto Rico, at a depth of 102.0 km and coordinates 19.3313°, -65.9513°.
Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.7 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 222 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-65.9513°E
Technical Information
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Common Questions
How strong was the magnitude 3.7 earthquake near San Juan, Puerto Rico?
The magnitude 3.7 earthquake that struck 97 km N of San Juan, Puerto Rico on January 11, 2024 at 21:11 UTC had a depth of 102.0 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 3.7 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.7 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr202401100). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2024, January 11, 2024). M3.7 Earthquake 97 km N of San Juan, Puerto Rico — January 11, 2024. Retrieved March 16, 2024 from https://www.earthquaketracker.org/earthquakes/event/pr202401100/