M3.2 Earthquake 66 km NNW of San Antonio, Puerto Rico — December 24, 2020
2020-12-24 23:21:44 UTC (2020-12-24) · approx. 7:21 PM UTC-4 local
On December 24, 2020 at 23:21 UTC, a magnitude 3.2 shallow crustal earthquake struck 66 km NNW of San Antonio, Puerto Rico, at a depth of 21.0 km and coordinates 19.0781°, -67.2575°.
Physical scale: An earthquake of magnitude 3.2 releases seismic energy equivalent to roughly 985 kg of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 99 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-67.2575°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.2 earthquake near San Antonio, Puerto Rico?
The magnitude 3.2 earthquake that struck 66 km NNW of San Antonio, Puerto Rico on December 24, 2020 at 23:21 UTC had a depth of 21.0 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 3.2 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.2 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2020359125). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2020, December 24, 2020). M3.2 Earthquake 66 km NNW of San Antonio, Puerto Rico — December 24, 2020. Retrieved December 26, 2020 from https://www.earthquaketracker.org/earthquakes/event/pr2020359125/