Earthquakes

Front

What is the force that acts on rock to change its shape or volume?

Back

Stress

Front

What instrument records and measures an earthquake's seismic waves?

Back

Seismograph

Front

What is the point on Earth's surface directly above the focus (or hypocenter) of an earthquake called?

Back

Epicenter

Front

What are the fastest seismic waves that are the first to reach any location during an earthquake?

Back

P Waves

Front

What is the point underground where the rock first begins to move during an earthquake?

Back

Focus or Hypocenter

Front

What are seismic waves that travel along the Earth's surface called?

Back

Surface Waves

Front

What is the term for the geological fault that causes an earthquake?

Back

Fault

Front

What is the scale used to measure the magnitude of an earthquake?

Back

Richter Scale

Front

What is the term for the shaking of the ground caused by seismic waves?

Back

Earthquake

Front

What is the process called when the Earth's crust breaks and moves?

Back

Faulting