An earthquake is a sudden release of energy that causes shaking of Earth's crust.

Effects include: shaking ground, shifting land, landslides, volcanoes, tsunamis

Eruption occurs when pressure forces hot liquid rock and gases out through Earth's crust.

Effects include: lava flowing, destroyed land, new land and islands form, tsunamis

A landslide is a fast, downhill movement of rocks and soil.

Landslides can often be caused by floods or mudslides.

Effects include: movement of rock, soil, and dirt, change in shape of land