Across
- 5. A natural shaking of the lithosphere cause by a release of energy stored in rocks.
- 7. The size or strength of an earthquake
- 8. The process where one plate is pushed below another and then is consumed in the mantle.
- 14. A fast-moving, destructive, and extremely hot avalanche of volcanic ash, hot rock fragments, and gases that flows down the side of a volcano during an eruption
- 15. A scale for measuring the elevation/height of an area of land, using
- 17. Boundary where two lithospheric plates are coming together.
- 19. A region deep within Earth's mantle where heat rises, causing magma to melt and erupt, forming volcanoes, and potentially leading to chains of volcanoes as tectonic plates move over the stationary hot spot.
- 20. Underwater mountain range created from a divergent plate boundary.
- 22. The theory that Earth’s continents are moving.
- 24. Molten rock inside the Earth.
- 25. A break in rock layers that is marked by displacement on either side.
- 28. The thickest layer of Earth that makes up about 80% of Earth’s volume.
- 30. Layer of Earth that is the rigid outer part of the earth, consisting of the crust and upper mantle.
- 31. Location on the surface directly above the focus.
- 32. The fastest earthquake wave that travels through the Earth (compressional).
- 33. a lowland region that forms where Earth's tectonic plates move apart, or rift.
- 34. The slow movement of Earth's mantle, where hot material rises and cooler material sinks, creating currents that move the Earth's tectonic plates
Down
- 1. The slower earthquake wave that travels through the Earth (shear).
- 2. The state or process of a species or ‘thing’ no longer existing.
- 3. An area on Earth's surface where seismographs cannot detect direct P-waves and/or S-waves from an earthquake.
- 4. Partially melted layer that allows for parts of the lithosphere to move.
- 6. Boundary where two lithospheric plates are moving apart.
- 9. Long, narrow depressions on the seafloor. Can be the deepest parts of the ocean—and some of the deepest natural spots on Earth.
- 10. A volcano that has erupted recently, is currently erupting, or is showing signs of erupting.
- 11. Section of the lithosphere that move due to convection currents.
- 12. A series of powerful ocean waves that can cause damage when they reach coastal areas.
- 13. A vent in the crust of the Earth from which molten material and steam is ejected from.
- 16. A large depression formed when a volcano erupts and collapses.
- 18. Boundary where two lithospheric plated are sliding past one another.
- 21. A Volcano that hasn't erupted recently bust is considered "potentially" active" because it could erupt again.
- 23. The point inside the Earth where the earthquake originates.
- 26. Large, moving pieces of the Earth's crust and upper mantle that fit together like a puzzle.
- 27. The process where ocean floor is extended when two plates move apart.
- 29. When wet soil loses its strength and stiffness during an earthquake and begins to behave like a liquid.