Volcanoes and earthquakes are natural disasters that can cause great damage and loss of life. Both volcanoes and earthquakes are caused by the heat and energy released from the Earth’s core. The severe movement of tectonic plates during an earthquake can trigger volcanic eruptions; whereas the movement of magma within a volcano can trigger earthquakes. These sudden movements can generate significant deformation in a short period of time. Delve into this book to find out how planet Earth has gone through the multitude of changes throughout the centuries.