New crust is continually being pushed away from divergent boundaries ... around the world, ocean crust subducts, or slides under, other pieces of Earth's crust. The boundary where the two plates ...

Volcanoes and earthquake activity often occur in similar places in narrow zones of activity, as shown on the map. These zones include: the Pacific Ring of Fire around the Pacific Ocean the Mid ...

Using information from inside the rocks on Earth's surface, we have reconstructed the plate tectonics of the planet ... It ...