Earthquakes

Question 0

Earthquakes are caused by tension that builds up at all _ plate boundaries.

Answer 0

3

Question 1

Earthquakes are caused by ________ _____ ________

Answer 1

Tectonic plate movement

Question 2

When the plates ____ past each other ________builds up.

Answer 2

Move pressure

Question 3

Eventually the ________ becomes too much and the plates ____ past each other.

Answer 3

Pressure jolt

Question 4

When the plates jolt past eachother it sends out _______ waves (vibrations). These vibrations are the earthquake.

Answer 4

Seismic

Question 5

The seismic waves spread out from the _____, the place in the lithosphere where the earthquake starts.

Answer 5

Focus

Question 6

The focus doesn’t have to be a single _____. For example it could be along a fault line.

Answer 6

Point

Question 7

Near the focus the waves are ________ and cause more ______.

Answer 7

Stinger damage

Question 8

The epicentre is the point directly _____ the focus on the earths surface.

Answer 8

Above

Question 9

Although most earthquakes are caused by plate movement there are other possible causes. Reactivation of old fault lines. Subsidence (where the ______ sinks) as a result of deep mining. Pressure on surface rocks from water in large reservoirs.

Answer 9

Ground

Question 10

Earthquakes cause damage in various ways they can cause __________ to collapse , cause tsunamis, avalanches, landslides, liquefaction.

Answer 10

Buildings