Tectonic Hazards

• Mantle


  The layer of very hot rock below Earth's crust
• Oceanic Crust


  Earth's crust below the ocean
• Continental crust


  The part of the earth's crust that makes continents
• Plate boundaries


  Where the edges of tectonic plates meet
• Destructive plate boundary


  Where tectonic plates are forced together - subduction of Heavy oceanic crust occurs - rising magma create volcanoes
• Constructive plate boundary


  Where tectonic plates move apart and new land is created - where fissures create volcanoes
• Transform


  Where tectonic plates move alongside each other.
• Focus


  The source of an earthquake beneath the Earth's surface
• Seismic wave


  Fast waves of energy generated from the focus of an earthquake
• Pyroclastic flows


  Torrent (a fast, voluminous, or violent stream) of hot ash, rock ,gas and steam from a volcano
• Lahars


  A mudflow of melted snow and volcanic ash released from a glacier melted by a volcano
• Mitigation


  Action taken to make something less severe