Shallow M6.1 earthquake hits western Cuba (Updated)

A shallow M6.1 earthquake was registered at 18:00 UTC on June 8, 2026, approximately 102 km (63 miles) west-northwest of Mantua, Cuba. The seismic event occurred at a depth of 26.0 km (16.2 miles), according to information from the United States Geological Survey (USGS).

The coordinates place the earthquake’s epicenter at 22.8°N, 85.1°W, situating it offshore to the northwest of Mantua, a locality in Pinar del Río Province in western Cuba. This area is characterized by sparse population and proximity to Cuba’s northwestern coastal region.

Regional infrastructure in this part of Cuba may include small coastal highways, rural communities, local energy distribution networks, and limited port facilities serving fishing and regional transport activities.

There is no tsunami threat associated with this earthquake, based on its location and available data.

USGS issued a green alert for this event, indicating a low likelihood of casualties or damage. The maximum estimated intensity for this earthquake was IV, with 5,659 felt reports submitted. The significance index is 1,132 (on a scale that runs through 1,000), based on magnitude, felt reports, and estimated impact.

Cuba is situated near the boundary of the North American and Caribbean Plates. The region can experience significant seismic activity, especially along offshore fault systems south and west of the island, although major events are relatively infrequent.

This information was last updated at 17:44 UTC on June 9, 2026.