Earthquakes
Before and After
Earthquake Anatomy
Earthquake Proof Buildings
100
You can see them in the ocean, you can make them with your hands, and the energy from earthquakes travels in them.
Waves
100

The shaking that follows an earthquake

Aftershocks

100

The point underground where the earthquake originates

Focus

100

This allows buildings to move independantly from the ground during an earthquake.

Base isolation

200

 a long crack in the surface of the earth where earthquakes usually occur.

Fault Line

200
When an earthquake is followed by a larger earthquake the first earthquake is renamed a 

foreshock

200

The point directly ABOVE where an earthquake originiates

Focus

200

When the building sways, this type of earthquake proofing swings in the opposite direction to stabilize it.

Pendulum


300

The tool used to measure earthquakes.

Siesmograph

300

The biggest shock in an earthquake.

the mainquake

300
This type of plate boundary is the LEAST likely to cause an earthquake (transform, convergent or divergent?)

Divergent

300

This material should not be used for earthquake resistant buildings because it is not flexibly.  

Stone

400

The scale used to measure earthquakes

Ritcher Scale

400

Before an earthquake, this is building up between tectonic plates

Pressure

400
The focus can be deep or it can be shallow, but which one causes the most damage?

shallow focus

400

this reinforces building structures in which diagonal supports intersect.

Cross bracing