Earthquake/wave/fault Test

Front 1

what is the actual thickness of the lithosphere?

Back 1

40 kilometers

Front 2

what is the actual thickness of the Asthenosphere?

Back 2

700 kilometers

Front 3

what is the actual thickness of the Mantle?

Back 3

2200 kilometers

Front 4

what is the actual thickness of the outer core

Back 4

2250 kilometers

Front 5

what is the actual thickness of the innercore

Back 5

1250 kilometers

Front 6

what layer is the thickest?

Back 6

outer core

Front 7

what layer is the thinnest?

Back 7

lithosphere

Front 8

on average, the plates are moving about ___ inches per year.

Back 8

one

Front 9

The north American and pacific plates meet at the _____ fault

Back 9

San Andreas

Front 10

a beam of light that is reflected off a mirror to detect changes in distance

Back 10

laser

Front 11

uses the speed of seismic waves to view the interior of the earth

Back 11

seismic tomography

Front 12

sedimentary layers deposited over faults shift as earth's crust moves

Back 12

paleoseismology

Front 13

an instrument buried underground to detect motion

Back 13

underground sensor

Front 14

a wire is pulled as the crust moves

Back 14

creep metter

Front 15

______ occurs when water rises to the surface during an earthquake

Back 15

liquefaction

landslides

Front 16

most deaths in an earthquake are caused by ____

Back 16

large buildings that collapse

Front 17

list three things that make buildings more earthquake resistant

Back 17

1. rubber shocks
2. wood buildings
3. shorter buildings

Front 18

earthquakes may be a warning sign for a ____

Back 18

coming volcano erruption

Front 19

what is an earthquake?

Back 19

movement of the earths crust that occur when the plates shift and release stored or potential energy

Front 20

what are seismic waves?

Back 20

shock waves from an earthquake.

Front 21

name the three types of seismic waves?

Back 21

Primary,secondary, and surface wave

Front 22

the outermost layer which is made up of the silicates rich in aluminum, iron, and magnesium, is the ____

Back 22

crust

Front 23

the innermost layer which is made up primarily of iron and nickel is called the ___

Back 23

core

Front 24

the layer between the outermost and innermost layer is called the ___

Back 24

mantle

Front 25

the outer layer is cool rigid and solid

Back 25

lithosphere

Front 26

beneath the outer layer is the hot, semi-liquid layer, called the ____

Back 26

asthenosphere

Front 27

where the temperature differences cause matter to flow in a circular pattern known as
---

Back 27

convection

Front 28

a shock wave caused by an earthquake is called a(n) ____

Back 28

seismicwave

Front 29

when a seismic wave reaches the _____, a thin boundary between the crust and mantle, its velocity suddenly increases.

Back 29

Moho

Front 30

this area is called the _____ and is thought to occur because the earths core stops S waves and bends P waves, causing their direction to change

Back 30

shadow zone

Front 31

What kind of fault is the Himalaya mountains?

Back 31

reverse fault

Front 32

What kind of fault is the mid- Atlantic ridge?

Back 32

normal fault

Front 33

What kind of fault is the San Andreas fault?

Back 33

Lateral fault

Front 34

Name the five most volcanically active regions in the U.S

Back 34

Alaska, Hawaii, California,Oregon, and Washington (state)