M4.9 Earthquake 98 km WNW of Mantua, Cuba — June 15, 2026
2026-06-15 17:37:48 UTC (3 hours ago) · approx. 11:37 AM UTC-6 local
Felt by 11 people across nearby locations. Aftershock of the M6.1 mainshock.
On June 15, 2026 at 17:37 UTC, a magnitude 4.9 shallow crustal earthquake struck 98 km WNW of Mantua, Cuba, at a depth of 19.8 km and coordinates 22.7343°, -85.1177°. This earthquake was detected by 75 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 372, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.9 releases seismic energy equivalent to roughly 338 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.4 km — a useful intuition for the size of the slip patch on the fault.
This earthquake is part of an ongoing aftershock sequence following the magnitude 6.1 mainshock that occurred 7 days ago 102 km WNW of Mantua, Cuba. Since the mainshock, the USGS has recorded 2 aftershocks in this area. Aftershock activity is expected to continue for weeks to months as stresses on surrounding faults redistribute.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 11 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
-85.1177°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.9 earthquake near Mantua, Cuba?
The magnitude 4.9 earthquake that struck 98 km WNW of Mantua, Cuba on June 15, 2026 at 17:37 UTC had a depth of 19.8 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at 22.7343°, -85.1177°, which is 98 km WNW of Mantua, Cuba.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.9 earthquakes can continue for several days and gradually diminish over time.
Is this the same earthquake as the M6.1 one earlier?
No. This magnitude 4.9 earthquake is an aftershock of the larger magnitude 6.1 mainshock that occurred earlier 102 km WNW of Mantua, Cuba. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.
What should I do after an earthquake?
If you were in the affected area: check yourself and others for injuries, inspect your home for damage, and be prepared for aftershocks. For detailed guidance, see our earthquake safety guide and emergency planning resources.
Authoritative source: USGS event page (event ID: us7000st59). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, June 15, 2026). M4.9 Earthquake 98 km WNW of Mantua, Cuba — June 15, 2026. Retrieved June 15, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000st59/