7.6 magnitude earthquake hits southwest of Cayman Islands: USGS Tsunami advisory temporarily in effect for Puerto Rico and surrounding islands.
The United States Geological Survey (USGS) has said that a 7.6 magnitude earthquake has struck in the Caribbean southwest of the Cayman Islands.
The fault line in the area is called the Cayman Trough and marks the dividing line between the North American and Caribbean tectonic plates.
The epicenter of the quake was 130 miles (209 kilometers) south-southwest of the capital of George Town in the Cayman Islands.
According to USGS, such mini-earthquakes come after readjustments to the fault and are typically not as strong as the initial quake.
