Sea Between St. Thomas & St. Croix Plunges 1.4 Miles

The Anegada Passage, also known as the Bunce Fault by geologists and seismologists, separates Saint Croix from the northern islands.

Just forty-five miles of sea separate the U.S. Virgin Islands and Puerto Rico. Saint John is approximately six miles east of Saint Thomas, and Saint Croix is forty miles to the south of both islands.

Image Courtesy of the U.S. Geological Survey

Islands Sitting on a Submarine Mount

As sunlight touches the seafloor and reflects against the white sand, the t…