M4.0 Earthquake 10 km SW of San Rafael del Yuma, Dominican Republic — August 8, 2023
2023-08-08 20:28:23 UTC (2023-08-08) · approx. 3:28 PM UTC-5 local
On August 8, 2023 at 20:28 UTC, a magnitude 4.0 intermediate depth earthquake struck 10 km SW of San Rafael del Yuma, Dominican Republic, at a depth of 116.0 km and coordinates 18.3626°, -68.7458°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 13 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 325 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
-68.7458°E
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Common Questions
How strong was the magnitude 4.0 earthquake near San Rafael del Yuma, Dominican Republic?
The magnitude 4.0 earthquake that struck 10 km SW of San Rafael del Yuma, Dominican Republic on August 8, 2023 at 20:28 UTC had a depth of 116.0 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 4.0 earthquakes can continue for several days and gradually diminish over time.
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Understanding This Data
Magnitude 4.0 earthquakes are typically only recorded by instruments.
Authoritative source: USGS event page (event ID: pr2023220001). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2023, August 8, 2023). M4.0 Earthquake 10 km SW of San Rafael del Yuma, Dominican Republic — August 8, 2023. Retrieved October 17, 2023 from https://www.earthquaketracker.org/earthquakes/event/pr2023220001/