Ch 8 Vocab Quiz

1.

1 point

when soil and rock are saturated with water, earthquakes can cause a process called ___________

mudflow

liquefaction

landslide

2.

1 point

A ________is a wave formed when the ocean floor shifts suddenly during an earthquake.

mudslide

tsunami

landslide

3.

1 point

the point within earth where an earthquake starts

earthquake

focus

fault

4.

1 point

when body waves reach the surface, they produce this type of wave_____________

s-wave

p-wave

surface waves

5.

1 point

over 82% of earth's volume is contained in the_________

crust

mantle

core

6.

1 point

the_______is the thin rocky outer layer of earth, divided into continental and oceanic

mantle

core

crust

7.

1 point

this type of wave are push-pull and compress or expand particles in the direction the waves travel.

s-wave

p-wave

surface wave

8.

1 point

The name of the boundary that separates the crust from the underlying buondary is known as this

Andrija

Moho

The Boundary

9.

1 point

the tendency for the deformed rock along a fault to spring back after an earthquake is called ___________

aftershock

foreshock

elastic rebound

10.

1 point

this type of wave shakes particles at right angles to the wave's direction of travel

p-wave

s-wave

surface wave

11.

1 point

an earthquake that occurs sometimes soon after a major earthquake is called a____________

foreshock

aftershock

earthquake

12.

1 point

this is the name of the instrument that records earthquake waves

seismometer

seismogram

seismograph

13.

1 point

the location on the surface directly above the focus is called the __________

fault

focus

epicenter

14.

1 point

energy released by the earthquake travels in all direction from the focus in the form of this

seismic waves

epicter

fault

15.

1 point

the_____________is derived from the amount of displacement tha occurs along a fault. It's one method used to measure an earthquake.

Richter Scale

Modified Mercalli Scale

moment magnitude

16.

1 point

the____________is a liquid layer 2260 km thick and the flow of metallic iron within this zone generates the earth's magnetic field.

outer core

mantle

inner core

17.

1 point

the vibration of earth produced by the rapid release of energy in the lithosphere

fault

focus

earthquake

18.

1 point

A __________is an area along a fault where there has not been any earthquake activity for a long period of time.

seismic gap

seismic boundary

fault line

19.

1 point

earth's outermost layer consists of the crust and uppermost mantle and forms a relatively cool, rigid shell called the _________

inner core

lithosphere

asthenosphere

20.

1 point

the__________is a sphere having a radius of 1220 km and despite its higher tempeartures, the materials in this area of earth are compressed into a solid state by immense pressure

mantle

outer core

inner core

21.

1 point

a ________shows all three types of seismic waves.

seismograph

seismogram

seismometer