Earthquakes occur as a result of strain from tectonic movement being suddenly released as a shock wave. In addition volcanoes may be formed as a result of divergence or subduction (from convergence), which both result from tectonic movement.
earthquakes
the movement of earths plates or crust
The Earth's crust is destroyed when subduction occurs.
When a shift occurs in the Earth's crust, the energy can radiate as seismic waves. These waves travel through the Earth's interior and can be detected and measured by seismographs. Depending on the type of fault movement, the seismic waves produced can be either compressional (P-waves) or shear (S-waves).
a person who studies the movement of the earths crust
The movement in earths plates create powerful forces that pull or squeeze the rock in the crust.
Plate tectonic movement and subduction zones.
compression
True((;
Most Faults Occur Where The Earths Crust Is Extended
rifts
EARTHQUAKE