Across
- 4. Seismic waves that only travel through solids
- 5. Volcanoes that are currently erupting and show signs of future eruptions
- 8. The study of earthquakes
- 9. A type of magma that is thick and slow moving
- 10. Volcanoes with no eruptions in recorded history; not expected to erupt
- 12. Volcanoes with pyroclastic eruptions, but are small and have short lifetimes
- 13. A scale used to measure how much an earthquake causes the ground to move
- 15. The location of an earthquake at the surface
- 16. Surface waves that travel like a transverse wave
- 17. A funnel shaped pit around the vent of a volcano
- 18. The fastest type of seismic waves
- 19. Volcanoes that have non-explosive reactions, runny lava, and gently sloping sides
- 21. A volcano with an eruption volume that's greater than 1000 cubic km
Down
- 1. Waves that travel through the earth
- 2. Volcanoes with explosive eruptions and steep sides
- 3. The location of an earthquake in the earth below the epicenter; origin of the movement
- 4. Waves of energy that travel through the earth
- 6. A scale used to measure the intensity of an earthquake
- 7. An area in the earth where magma and volcanic gases pass through
- 11. Surface waves that travel like an "S"
- 14. Similar to a crater but much larger
- 19. Waves that travel at the surface
- 20. Volcanoes that are currently not erupting and show signs of future eruptions
- 22. Pieces of solid magma floating in the air
- 23. Long cracks in the crust where lava flows out and builds up over time
