A portion of the Pacific tectonic plate suddenly ruptured along a fault, triggering a magnitude 7.9 quake in the Aleutian Islands. The plate is sinking 59 millimeters a year.
Fifty years ago, there was a seismic shift away from the longstanding belief that Earth's continents were permanently stationary. Obviously, they were wrong.
The continental drift is when the continents drift apart. A long, long, time ago the continents formed super continents. They all had names but once they fell apart the changed. The first super continent was Artica.
The Earth is made up of tectonic plates. The plates are made of the other shell of the earth, the crust. The crust is part of the Lithosphere. Plates are moved by a convection current in the mantel. This causes a Continental Drift.