MEXICO CITY (AP) — A magnitude-7.6 earthquake shook the Caribbean Sea southwest of the Cayman Islands Saturday, according to the U.S. Geological Survey, and some islands and countries urged people near the coastline to move inland in case of a tsunami.

Puerto Rico and the Virgin Islands have both issued tsunami advisories following the enormous 7.6 magnitude earthquake in the Caribbean Sea on Saturday, with 12 islands also under threat

Mexico: A magnitude-7.6 earthquake shook the Caribbean Sea southwest of Cayman Islands on Saturday, according to the US Geological Survey. Some Caribbean islands and Honduras urged people near the coastline to move inland or avoid beaches as a precaution in case of a tsunami.

Mexico City – A magnitude-7.6 earthquake shook the Caribbean Sea southwest of the Cayman Islands Saturday, according to the U.S. Geological Survey, and some islands and countries urged people near the coastline to move inland in case of a tsunami.

The powerful quake, which struck 10 km below the Earth's surface, prompted the National Weather Service's (NWS) Pacific Tsunami Warning Centre to issue tsunami alerts for coastal regions of the Cayman Islands, Jamaica, Cuba, Mexico, Honduras, Bahamas, San Andres and Providencia, Belize, Haiti, Costa Rica, Panama, Nicaragua, and Guatemala.

An earthquake of magnitude 7.6 rattled the Caribbean Sea on Saturday evening (local time), US monitoring agencies said. The quake struck north of Honduras, about 130 miles (209 kilometres) off the coast of the Cayman Islands.