Havana: An earthquake measuring 7.7 on Richter scale rocked the Caribbean between Jamaica and Cuba triggering a brief tsunami alert.
However, the US Pacific Tsunami Warning Center withdrew the alert after few hours. Reports said there were no casualties.
Reports said hundreds of people poured onto the streets of Havana after the earthquake struck the region. The tremors were felt as far as the US mainland, where police in Miami evacuated some buildings as a precaution.
The US Geological Survey said the quake hit at a depth of 10 kilometers (six miles) at 2:10 pm (1910 GMT) — 125 kilometers northwest of Lucea, Jamaica.
The initial tsunami threat indicated that waves reaching 0.3 to one meter (about one to three feet) above tide level might pound the coasts of Jamaica, Belize, Cuba, Honduras, Mexico and the Cayman Islands. The first, bigger quake rattled several tall buildings in the Cuban capital Havana, which were immediately evacuated.