M3.9 Earthquake 6 km NNW of San Rafael del Yuma, Dominican Republic — September 7, 2021
2021-09-07 21:26:23 UTC (2021-09-07) · approx. 4:26 PM UTC-5 local
On September 7, 2021 at 21:26 UTC, a magnitude 3.9 intermediate depth earthquake struck 6 km NNW of San Rafael del Yuma, Dominican Republic, at a depth of 113.0 km and coordinates 18.4836°, -68.6921°.
Physical scale: An earthquake of magnitude 3.9 releases seismic energy equivalent to roughly 12 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 310 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-68.6921°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 3.9 earthquake near San Rafael del Yuma, Dominican Republic?
The magnitude 3.9 earthquake that struck 6 km NNW of San Rafael del Yuma, Dominican Republic on September 7, 2021 at 21:26 UTC had a depth of 113.0 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 3.9 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 3.9 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2021250008). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 7, 2021). M3.9 Earthquake 6 km NNW of San Rafael del Yuma, Dominican Republic — September 7, 2021. Retrieved November 17, 2021 from https://www.earthquaketracker.org/earthquakes/event/pr2021250008/