Great stresses build up along the plate boundaries. When a plate moves suddenly a great amount of energy is released in the form of wave energy. These waves are what cause the damage from an earthquake. Along plate boundaries. The main earthquake zones are the Circum-Pacific belt that stretches around the rim of the Pacific Ocean and the Alpide Belt in Europe and Asia.
Volcanoes grow from their eruptions.
When avolcano erupts it ejects lava, or pyroclasts, or both that builds the cone larger and larger. Name the volcanic term for each letter.