Restless Earth 1

4. Extended openings along a line of weakness that allow magma to escape
7. A sudden and brief period of ground shaking
8. A broad volcano that is mostly made up of lava
10. A logarithmic scale used for measuring earthquakes based on scientific recordings of the amount of movement
12. The circular currents of heat in the mantle
13. Steps cut into hill sides to create areas of flat land
15. The immediate effects of the eruption, caused directly by it
16. Deep sections of the ocean, usually where an oceanic plate is sinking below a continental plate
18. A section of the earth's crust
19. The meeting of two plates of continental crust. They are both the same type so they meet 'head on' and buckle
20. A geothermal feature in which water erupts into the air under pressure

1. Organising activities and drills so that people know what to do in an earthquake
2. The use of flowing water to turn turbines to generate electricity
3. How people react as the disaster happens and in the immediate aftermath
5. The outer layer of the earth
6. Money, food, training, and technology given by richer countries to poorer ones, either to help with an emergency or to encourage long term development
9. The opening—usually central and single—in a volcano, from which magma is emitted
11. A mega colossal volcano that erupts at least 1000km³ of material
14. Attempts to forecast an event—where and when it will happen—based on current knowledge
17. Seismic waves generated by an earthquake that pass through the earth's crust