Ch. 8 Earthquakes

Front

What is retrofitting?

Back

Retrofitting is the process of making older structures more earthquake resistant.

Tags

NGSS.MS-ESS3-2

Front

What is a mass damper?

Back

A mass damper is a weight placed on a building to make it earthquake resistant.

Tags

NGSS.MS-ETS1-4

Front

What type of fault occurs at a transform boundary?

Back

A strike-slip fault occurs at a transform boundary.

Front

What is a seismic gap?

Back

A seismic gap is an area along a fault where relatively few earthquakes have occurred recently, but strong earthquakes have occurred in the past.

Tags

NGSS.MS-ESS3-2

Front

In what direction do P waves flow?

Back

P waves flow back and forth.

Front

What is the purpose of a base isolator?

Back

A base isolator is used to absorb seismic energy and reduce the amount of shaking experienced by a building during an earthquake.

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Front

Define an earthquake.

Back

An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth's lithosphere.

Front

What is the Richter scale?

Back

The Richter scale is a logarithmic scale used to measure the magnitude of earthquakes.

Front

What is a fault line?

Back

A fault line is a fracture or zone of fractures between two blocks of rock.

Tags

NGSS.MS-ESS3-2

Front

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

Back

In a normal fault, the hanging wall moves down relative to the footwall, while in a reverse fault, the hanging wall moves up relative to the footwall.