seismic wave
volcanoes
plate tectonics
Seismograph
magma
earthquake
fault lines
lava
Epicenter
a scientific theory that Earth’s crust is made of moving plates
hot, molten rock found deep below the Earth's surface
the center of an earthquake
a vibration caused by an earthquake
magma that reaches the Earth’s surface
a sudden shaking of the rock that makes up Earth’s crust
a break or crack in the rocks of Earth’s crust where movements can take place
a mountain that builds up around an opening in Earth’s crust
an instrument that measures waves created by earthquakes
