The Cuba earthquake that struck off the island’s northwest coast on Monday was the strongest to hit the area in nearly 150 years, sending tremors across parts of Cuba, Mexico, and Florida, regions that rarely experience significant seismic activity.

The Details of the Quake

According to the U.S. Geological Survey, the earthquake registered a magnitude of 6.1 at a shallow depth of 26 kilometers. Its epicenter sat about 104 kilometers west-northwest of Mantua, Cuba, a spot roughly two to four hours by car from the capital, Havana.

What made the event so unusual was its location. USGS seismologist Paul Earle explained that the quake occurred within a tectonic plate rather than along a plate boundary. Earthquakes inside a plate tend to be more scattered and far less frequent, which is part of why this one stood out.

The historical comparison drives the point home. An earthquake this powerful had not struck within 322 kilometers of Monday’s epicenter since 1880, when a magnitude 6.0 tremor hit near San Cristobal, Cuba.

A Region on Edge

So far, authorities have not reported any major damage or casualties. Still, the quake stirred real alarm in Cuba, where decades of economic crisis have left many buildings in serious disrepair and especially vulnerable to shaking. Complicating matters, widespread blackouts across the region made communication difficult in the aftermath.

For residents, the experience was unlike anything they had known. In Pinar del Rio in western Cuba, 44-year-old Yusmila Hernandez described feeling something she had never encountered before, recalling how people rushed outside in fear. She struggled to put the sensation into words, saying it felt like no earthquake the area had ever experienced.

Felt Across Borders

The shaking didn’t stop at Cuba’s shores. The USGS reported that tremors reached Florida, and in Mexico the quake was felt across popular tourist destinations on the Yucatan peninsula, including:

• Cancun
• Playa del Carmen
• Tulum

In Cancun’s city center, residents and workers unaccustomed to strong quakes evacuated buildings as a precaution. Authorities took the threat seriously, with emergency protocols activated in Mexico’s Yucatan and Quintana Roo states. Both states’ governors said on social media that no damage had yet been reported.

No Tsunami Threat

One piece of reassuring news came quickly: the U.S. National Weather Service confirmed that no tsunami warning or watch was issued following the earthquake.

For a part of the Caribbean so unaccustomed to seismic events of this scale, the quake served as a jarring reminder that even regions considered relatively stable are not entirely beyond the reach of the earth’s movements. As assessments continue, officials across all three affected areas will be watching for any delayed reports of damage, particularly in Cuba, where fragile infrastructure remains the greatest concern.