Earthquakes and Structure Design (BSIP)

Front

What is compression in geology?

Back

Compression is a stress that squeezes rock together, causing it to deform.

Front

What is shearing in geology?

Back

Shearing is a stress that pushes rock in opposite directions, causing it to slide past one another.

Front

What are faults?

Back

Faults are fractures in the Earth's crust where blocks of rock have moved relative to each other.

Front

What are seismic waves?

Back

Seismic waves are energy waves that travel through the Earth's crust after an earthquake.

Front

What are surface waves?

Back

Surface waves are seismic waves that travel along the Earth's surface and are typically the most destructive.

Front

What causes an earthquake?

Back

An earthquake occurs when rocks along an underground fault move suddenly and release energy.

Front

What are P waves?

Back

P waves, or primary waves, are the fastest seismic waves that travel through solids and liquids.

Front

What are S waves?

Back

S waves, or secondary waves, are seismic waves that only travel through solids and are slower than P waves.

Front

How do seismic waves differ from sound waves?

Back

Seismic waves are energy waves that travel through the Earth, while sound waves are vibrations that travel through air or other media.

Front

What is the focus of an earthquake?

Back

The focus is the point within the Earth where an earthquake originates.