How was the island Puerto Rico formed?

The island of Puerto Rico was formed as a result of the collision of the North American and Caribbean plates. The island is located on the boundary between these two plates, which are constantly moving towards each other. The collision of the plates caused the Caribbean plate to be subducted beneath the North American plate, resulting in the formation of the Puerto Rico Trench, the deepest point in the Atlantic Ocean. The collision also caused the uplift of the land above sea level, forming the island of Puerto Rico.