Seismic Waves

Front

What type of fault occurs when the hanging wall slides up and over the footwall?

Back

Reverse fault.

Front

What type of fault occurs when the hanging wall slips downward below the footwall?

Back

Normal fault.

Front

What is the term for the area above ground where an earthquake starts?

Back

Epicenter.

Front

What is the fastest seismic wave that compresses and expands rock?

Back

Primary Wave.

Front

What is the term for the point within the Earth where an earthquake originates?

Back

Focus (or Hypocenter).

Front

What type of seismic wave travels through solids and liquids and is slower than Primary Waves?

Back

Secondary Wave.

Front

What is the difference between a normal fault and a reverse fault?

Back

A normal fault occurs when the hanging wall moves down relative to the footwall, while a reverse fault occurs when the hanging wall moves up relative to the footwall.

Front

What are surface waves and how do they differ from body waves?

Back

Surface waves travel along the Earth's surface and typically cause more damage than body waves, which travel through the Earth's interior.

Front

What is the Richter scale used for?

Back

To measure the magnitude of an earthquake.

Front

What is the relationship between seismic waves and the Earth's layers?

Back

Seismic waves travel at different speeds through different layers of the Earth, providing information about the Earth's internal structure.

Tags

NGSS.MS-PS4-2