1.
– The point on the surface directly above the underground origin.
2.
– The size or energy release of the quake.
3.
– Smaller quakes that follow the main event.
4.
Line – A fracture in the Earth's crust where movement occurs.
5.
– An instrument used to detect and record vibrations.
6.
Plates – Massive slabs of rock that make up the Earth's outer shell.
7.
– The actual point inside the Earth where the rupture begins.
8.
Scale – A mathematical scale used to measure the intensity of a quake.
9.
– A relatively small or minor shaking of the ground.
10.
– When solid ground turns into a liquid-like state during shaking.
11.
– A giant sea wave often caused by an underwater earthquake.
12.
– A long, narrow crack or opening in the ground.
13.
Waves – Energy waves that travel through the Earth's layers.
14.
– When one tectonic plate slides under another.
15.
– A measure of the shaking and damage at a specific location.
16.
– A smaller quake that happens before the big one.
17.
– Another word for an earthquake.
18.
– The sudden upward movement of the ground.
19.
– The breaking or tearing of the Earth's crust.
20.
– A scientist who specializes in studying earthquakes.
