Earthquakes

More than 10,000 earthquakes occur

Any place the Earth's crust can move is called a

The focus (or hypocenter) is the place where energy is released at a fault and is the starting point of an earthquake.

What type of waves are released from earthquakes?

What are scientists who study earthquakes called?

The location on earth's surface directly above the focus, the place where the earthquake starts.

Which of these are instruments used to study earthquakes?

Scientists use this to measure the energy waves emitted from earthquakes.

A series of large waves created by underwater earthquakes, volcanoes and other disturbances.

This technology is used to simulate the shaking of an earthquake to help design structures that will withstand seismic waves during earthquakes.