What are earthquakes, volcanoes, and tsunamis?
Earthquakes are caused by the shifting of the Earth's plates and are often felt as shaking of the ground. Volcanoes are cracks in the Earth's surface that allow hot, molten rock, ash, and gas to escape. Tsunamis are huge walls of water caused by earthquakes under the ocean.
Earthquakes, Volcanoes, and Tsunamis
Earthquake: A shaking of the ground caused by the sudden release of energy from within the Earth. Volcano: A mountain or hill formed by the accumulation of materials erupted through one or more openings in the Earth's surface. Tsunami: A large ocean wave caused by an underwater earthquake, landslide, or volcanic eruption.
Earthquakes can sometimes trigger volcanic eruptions. Tsunamis can travel as fast as a jet plane. Tsunamis are often caused by earthquakes that occur beneath the seafloor.
Did you know?
Work together in pairs: What are the three main types of natural hazards associated with earthquakes, volcanoes, and tsunamis?
Work together in pairs: What are three things you can do to be prepared for a natural disaster like an earthquake, volcano, or tsunami?
Brain break: Draw a flower with five playful, smiling faces inside the petals.
What causes earthquakes?
- Tectonic plates moving
- Volcanic eruptions
What is the name of an opening in the Earth's surface where magma can escape?
What are giant sea waves triggered by undersea earthquakes called?
Which type of eruption is the most dangerous for people and property?
- Plinian eruption
- Hawaiian eruption
- Strombolian eruption
- Peleean eruption
What do you call a volcano that has not erupted in a long time, but could erupt again soon?
- Dormant volcano
- Inactive volcano
- Active volcano