Earthquakes & Volcanoes

3. large bowl-shaped volcanic depression
6. effusive silica poor erupting volcano
9. The point on earth's surface vertically above the focus of an earthquake
10. lava, ash, and gases expelled from a volcano during an eruption loses its upward momentum and falls back to the ground
12. dense, fast-moving flow of solidified lava pieces, volcanic ash, and hot gases
15. opening that magma flows through
16. the most common rock of the Earth’s crust, forming by the cooling of magma
17. a volcano that no longer erupts
20. type of stress common at divergent boundaries
21. molten rock below the earth’s surface
22. forces applied parallel to the surface & common at transform boundaries
23. temporarily inactive volcano

1. rock that is low in silica content & is dark in colour
2. Where 75% of volcanoes happen
3. type of stress common at convergent boundaries
4. energy of motion
5. the point within the earth where earthquakes begin
7. a region deep within the Earth's mantle where heat rises through convection
8. molten rock above the earth’s surface
11. volcano with steep walls & explosive granitic/silica rich eruption
13. steep-walled depression around a volcano’s vent
14. fast & first occurring wave
15. vent in the crust of Earth that has eruptions of molten rock, hot rock fragments, and hot gases
18. rock fragments and particles ejected by a volcanic eruption
19. dome shaped semi-explosive volcano