magma.
the tectonic plates are shifting under the earths surface.
this is called tectonic plates moving, this causes earthquakes and if under water it's called a psunami
An earthquake IS caused by the movement of the plates under the ocean. And there is one active site which is known as "The Ring of Fire". +++ The "Ring of Fire" is a whole set of active sites right round the Pacific Ocean, above the subductions of the sea-floor plates below the surrounding continents.
Everything on the surface of the earth is on a tectonic plate. All the Great Lakes and in fact all of the U.S. and Canada except for Hawaii and part of California are on the same tectonic plate: the North American Plate.
Tectonic plates are the moving pieces under the Earth's surface that form the Earth's crust. These plates float on the semi-fluid asthenosphere and interact with each other through processes like subduction, spreading, and collision, which contribute to the shaping of Earth's surface features.
Tectonic plates move because they are floating on top of the liquid mantle.
Tectonic plates
One result of the movements of tectonic plates is the formation of earthquakes. When tectonic plates interact, they can create stress that builds up and eventually causes the Earth's crust to shift suddenly, resulting in seismic activity.
they are plates under the crust that move when are shifted
the tectonic plates shake under the earth causing earthquakes
Two tectonic plates collide, one goes under and the other goes over. Usually this forms an earthquake and is how most mountains are formed eg: the great dividing range. :D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D:D
Its under the South American Plate
magma.
Yes
Anywhere under your feet.
the tectonic plates are shifting under the earths surface.