M3.8 Earthquake 95 km NW of Mantua, Cuba — June 8, 2026
2026-06-08 22:31:57 UTC (2026-06-08) · approx. 4:31 PM UTC-6 local
On June 8, 2026 at 22:31 UTC, a magnitude 3.8 shallow crustal earthquake struck 95 km NW of Mantua, Cuba, at a depth of 10.0 km and coordinates 22.8063°, -85.0275°.
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
-85.0275°E
Technical Information
Common Questions
How strong was the magnitude 3.8 earthquake near Mantua, Cuba?
The magnitude 3.8 earthquake that struck 95 km NW of Mantua, Cuba on June 8, 2026 at 22:31 UTC had a depth of 10.0 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: us7000srmf). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 8, 2026). M3.8 Earthquake 95 km NW of Mantua, Cuba — June 8, 2026. Retrieved August 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000srmf/