Plate Tectonics Crossword

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Across
  1. 2. chamber, the location beneath the vent of a volcano when magma is stored prior to eruption
  2. 4. an extremely hot liquid and semi-liquid rock under earth's surface
  3. 7. the point on the Earth's surface directly above the focus or hypocenter of an earthquake
  4. 8. place inside Earth's crust where an earthquake originates
  5. 10. a boundary in which two two plates are joining together
  6. 12. a method that uses distance information determined from three seismic stations to uniquely locate the earthquake
  7. 13. plates, gigantic pieces of the earth's crust and uppermost part of the mantle
  8. 16. a boundary in which two tectonic plates slide past each other horizontally
  9. 18. this action occurs whenever tectonic processes put stress on a rock, and the rock bends instead of breaking
  10. 19. a super continent predicted to have been broken apart millions of years ago to form the continents we know today
Down
  1. 1. waves triggered by large earthquakes that occur near or under the ocean
  2. 3. a number that characterizes the relative size of an earthquake
  3. 5. an instrument that measures and records details of earthquakes
  4. 6. a boundary in which two tectonic plates are being pulled apart
  5. 9. of fire, a path along the Pacific Ocean characterized by active volcanoes and frequent earthquakes
  6. 10. the outermost part of a shell of a terrestrial planet
  7. 11. a sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earth's crust or volcanic action
  8. 14. a fraction or zone of fractures between two blocks of rocks
  9. 15. spot, a large plume of hot mantle material rising from deep within the earth
  10. 17. a rupture in the earth's crust which allows magma, ash, and gases to escape from beneath the surface