M3.8 Earthquake 35 km SSE of Boca de Yuma, Dominican Republic — October 11, 2021
2021-10-11 23:30:05 UTC (2021-10-11) · approx. 6:30 PM UTC-5 local
On October 11, 2021 at 23:30 UTC, a magnitude 3.8 intermediate depth earthquake struck 35 km SSE of Boca de Yuma, Dominican Republic, at a depth of 87.0 km and coordinates 18.1086°, -68.4258°.
Physical scale: An earthquake of magnitude 3.8 releases seismic energy equivalent to roughly 7.6 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 252 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-68.4258°E
Technical Information
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Common Questions
How strong was the magnitude 3.8 earthquake near Boca de Yuma, Dominican Republic?
The magnitude 3.8 earthquake that struck 35 km SSE of Boca de Yuma, Dominican Republic on October 11, 2021 at 23:30 UTC had a depth of 87.0 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 3.8 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 3.8 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2021284001). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, October 11, 2021). M3.8 Earthquake 35 km SSE of Boca de Yuma, Dominican Republic — October 11, 2021. Retrieved December 18, 2021 from https://www.earthquaketracker.org/earthquakes/event/pr2021284001/