valcano AVAFRANZEN

3. A geologic hazard in which molten rock- called magma or lava- gases, ash, and other material are released onto Earth’s surface and into the atmosphere.
5. An opening at the surface of the Earth through which volcanic material passes.
6. A tracing of earthquake motion that is created by a seismograph
9. a theory in geology lithosphere of earth is divided into a small number of plates which float on and travel independently over a mantle and much of the earths seismic activity occurs at the boundres of these plates.
12. the point on the earths surface directly above the place that an earthquake occurred
13. molten rock/magma that reaches the earth's surface
14. the place inside earths crust where an earthquake originates
15. Molten rock BELOW the Earth’s surface
17. A vent or fissure in the Earth’s surface through which magma and gases are expelled

1. Movement of the Earth’s crust that occurs when rocks suddenly break and release stored energy.
2. Waves A seismic wave that causes particles of rock to move in a back and forth direction.
4. An instrument that records vibrations in the ground and determines the location and strength of an earthquake.
7. The study of Earthquakes
8. tectonics The theory that explains how large pieces of Earth’s outermost layer called tectonic plates move and change shape.
10. Waves A wave of energy that travels through the Earth, away from an earthquake in all directions.
11. Chamber The body of molten rock that feeds a volcano.
16. Eruption A geologic hazard in which molten rock- called magma or lava- gases, ash, and other material are released onto Earth’s surface and into the atmosphere.