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Volcanic Activity
Term | Definition |
---|---|
Volcanologist | A scientist who studies volcanoes |
Active volcano | Any volcano that has erupted in the past 10,000 years |
Dormant volcano | Any volcano that has not erupted in the past 10,000 years but is expected to erupt again |
Extinct volcano | A volcano that is never expected to erupt again |
Mid-ocean ridge | A long ridge of underwater volcanoes |
The Pacific Ring Of Fire | The North American and Eurasian plates are moving apart |
Volcanic Explosivity Index | Used to measure volcanic eruptions |
Positive Social impacts of volcanic activity | Increased tourism and employment |
Positive Economic impacts of volcanic activity | fertile soil and generated income |
Negative Social impacts of volcanic activity | Contaminated water supply |
Negative Economic impacts of volcanic activity | Travel chaos |
Geothermal Energy | Heat from the ground |
Cooled and hardened magma | Lava |
A small hole where lava can force its way up | Vent |
Mid-Atlantic Ridge | Chain of mountains found in the middle of the Atlantic Ocean |