A powerful magnitude 7.7 earthquake struck south of Cuba and northwest of Jamaica on Tuesday, the U.S. Geological Survey said.
The quake was felt in Miami, and police said some buildings were being evacuated in the city.
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The Miami Police Department said in a tweet that it was assisting firefighters with reports of vibrations in the Brickell and downtown areas. There were no reports of injuries.
It was centered about 86 miles northwest of Montego Bay, Jamaica, and 87 miles west-southwest of Niquero, Cuba. It hit at 2:10 p.m. and the epicenter was 10 kilometers beneath the surface.
The earthquake near Jamaica has been the strongest recorded by Cuban instruments and was felt across the country, Bladimir Moreno, of the National Center of Seismologic Investigations of Santiago de Cuba, told NBC News. Moreno said it was felt in some parts of Havana and Old Havana.
The USGS issued a tsunami threat forecast for Belize, Cuba, Honduras, Mexico, the Cayman Islands and Jamaica. The agency warned of waves up to one meter above the tide level.
There were no immediate reports of damage or injuries.
This is a developing story, please check back for updates.
Associated Press contributed.