Seismic Waves

Front

What is the location of an earthquake on Earth's surface?

Back

Epicenter

Front

Which type of seismic wave arrives first during an earthquake?

Back

Primary (P-wave) waves

Front

What are the slowest seismic waves that arrive last during an earthquake?

Back

Surface waves

Front

What is the focus of an earthquake?

Back

The point within the Earth where an earthquake originates.

Front

What is the epicenter of an earthquake?

Back

The point on the Earth's surface directly above the focus.

Front

What instrument records the waves produced by earthquakes?

Back

Seismograph

Front

What are Primary (P-wave) waves?

Back

The fastest seismic waves that travel through solids, liquids, and gases.

Front

What are Secondary (S-wave) waves?

Back

Seismic waves that arrive after P-waves and can only travel through solids.

Front

What are surface waves?

Back

Seismic waves that travel along the Earth's surface and are the slowest and most damaging.

Front

What is the difference between the focus and epicenter of an earthquake?

Back

The focus is the point inside the Earth where the earthquake originates, while the epicenter is the point on the surface directly above it.