Another area of subduction is where one oceanic lithosphere and another oceanic lithosphere collide. Remember the relationship between the age of the sea floor and its density on the previous page, the older the material the cooler and more dense, so the older sea floor will subduct under the younger more buoyant one. Here is the convergent boundary located between the North American Plate and the Caribbean Plate.
Here is another location full of geological activity. Deep earthquakes, volcanoes, and another unique feature. Notice the deep trench in the profile view, this is the Porto Rico trench, reaching depths of 8,400 meters below sea level, the deepest part of the Atlantic ocean. There is one spot on Earth however that plunges to a depth of 10,994 meters below sea level. This means that there would be over 2,000 meters of water above the summit of mount Everest if its base were at the same level.