A powerful earthquake struck between Honduras and the Cayman Islands in the Caribbean Sea on Saturday evening, prompting a tsunami warning for Puerto Rico and nearby islands. The quake had a preliminary magnitude of 7.6 and was centered over 100 miles southwest of George Town, with no immediate damage reported.
The U.S. National Tsunami Warning Center warned of potential sea-level fluctuations and strong ocean currents that could pose a hazard to boaters and beachgoers. A tsunami advisory was in effect for Puerto Rico and nearby islands, but the threat eventually subsided as no significant water rise was reported. The largest increase in sea level occurred on a Mexican island off the coast of Yucatán, with a 1.2-inch rise recorded.
Emergency management agencies across Central America and the Caribbean did not report any injuries. The earthquake triggered aftershocks that could last for months or years, but they are usually weaker than the original quake. Tsunamis in the Caribbean are rare due to fault lines typically not displacing large amounts of seawater.
Earthquakes are common in the region, and some events can be catastrophic for island nations. The Cayman Trough marks the boundary between North American and Caribbean tectonic plates, a region prone to seismic activity.
Source: https://www.foxweather.com/extreme-weather/major-earthquake-shakes-caribbean-islands-watching-tsunami-potential