This is usually a result of the Earth's many plates moving about and crashing into one another. Plates are what Earth's crust is divided into, for example, California is on another plate that Maryland.
Hope this helps!
Earthquakes
Divergent, transform, and convergent all have earthquakes
Pressure under ground is responsible for volcanoes.
Gravity
Earthquakes
earthquakes
An earthquake is responsible 'cause underwater earthquakes cause tsunamis.
yes earthquakes do
earthquakes
Mountains, lakes, earthquakes.
Crystals have electric properties which are responsible for producing vibrations which cause earthquakes...
there are usually alot of earthquakes/volcanic eruptions in Italy.