Harm or injury that makes something less useful or ruins it.
damage
A sudden shaking of the ground caused by movement of Earth’s crust.
Earthqual
Currently moving or capable of movement or change (such as a fault).
active
The thin, outer layer of the Earth.
crust
A giant ocean wave caused by an underwater earthquake.
tsunami
A wave of energy caused by a sudden movement underground.
shockwave
A machine that measures the strength of earthquakes.
seismograph
The point deep underground where an earthquake begins.
focus
A break or crack in Earth’s surface where earthquakes often happen.
fault line
A large piece of the Earth’s crust that moves slowly.
plate
The point on Earth’s surface directly above the focus of an earthquake.
epicenter
When large amounts of earth or rock suddenly fall down a hill or mountain.
landslide