Natural Disasters

Front 1

Earthquake

Back 1

rapid release of energy slip along a fault

Front 2

Hypocenter (focus)

Back 2

location inside the crust where the earthquake is initiated

Front 3

Epicenter

Back 3

Location on surface directly above the focus

Front 4

Where are the most earthquakes

Back 4

on the ring of fire

Front 5

why are there so many earthquakes in california

Back 5

because of the san andreas fault

Front 6

near oregon is a _________ boundary

Back 6

Convergent

Front 7

Edge of Alaska is a ______ boundary

Back 7

Convergent

Front 8

Compression

Back 8

Rocks squeezed together

Front 9

Compression is a ________ boundary

Back 9

Convergent

Front 10

rocks pulled apart

Back 10

tension

Front 11

Tension is a _______ boundary

Back 11

Divergent

Front 12

Shear

Back 12

when rocks slide past one another

Front 13

Shear is a ______ boundary

Back 13

Transform

Front 14

Front (Term)

Back 14

Buckling

Front 15

Front (Term)

Back 15

Bending

Front 16

faults

Back 16

fractures in the crust along which rocks move

Front 17

Vertical movement - Normal

Back 17

foot wall moves up stress -> tension

Front 18

Vertical movement - reverse

Back 18

foot wall moves down stress -> Compression

Front 19

Vertical movement - thrust fault reverse

Back 19

fault at 45 degrees or less from the surface

Front 20

horizontal movement - strike slip

Back 20

stress - shear

Right lateral

left lateral

Front 21

Front (Term)

Back 21

Normal Fault

Front 22

Front (Term)

Back 22

reverse fault

Front 23

Front (Term)

Back 23

Thrust fault

Front 24

Front (Term)

Back 24

strike slip fault

Front 25

the san andreas fault is a _____ slide

Back 25

shear slide

Front 26

strata slide

Back 26

due to compressing sparks buckling and bending

Front 27

tension slide

Back 27

causing the strata to flatten spreading out the strata

Front 28

San Andreas fault is a _____ lateral

Back 28

right lateral

Front 29

P-Waves

Back 29

fastest compressional

Front 30

Push/pull motion

and solids liquids gases

Back 30

P-Waves

Front 31

S-Wave

Back 31

Shear

Front 32

up/down motion

and solids only

Back 32

S-Waves

Front 33

love waves

Back 33

shear

Front 34

shear

side to side motion waves

Back 34

Love waves

Front 35

Rayleigh waves

Back 35

rolling motion

Front 36

Front (Term)

Back 36

love wave

Front 37

Front (Term)

Back 37

rayleigh wave

Front 38

Magnitude scale

Back 38

richter scale

Front 39

Intensity scale

Back 39

Mercalli scale

Front 40

Measures magnitude of earthquakes higher than 8

Back 40

moment scale

Front 41

what ground can you feel earthquakes more on

Back 41

sedimentary - bedrock is too thick

Front 42

Liquifaction

Back 42

loose weak soils start moving

Front 43

deadly buildings in an earthquake

Back 43

heavy masonry concrete low structures

Front 44

safe place to be in an earthquake

Back 44

wooden houses and steel framed places

Front 45

boundary along carribean

Back 45

transform

Front 46

boundary along carribean

Back 46

transform

Front 47

what two plates is california on

Back 47

north american plate and pacific plate

Front 48

what stress is formed at a restraining bend

Back 48

compression

Front 49

what stress is formed at a restraining bend

Back 49

compression

Front 50

what fault is formed at a restraining bend

Back 50

reverse/thrust

Front 51

what area are restraining bends common

Back 51

mountains

Front 52

rose canyon is a _____ lateral strike slip fault

Back 52

right

Front 53

energy in motion

Back 53

waves

Front 54

causes of tsunamis

Back 54

earthquakes landslides volcanic eruptions

Front 55

causes of tsunamis

Back 55

earthquakes landslides volcanic eruptions

Front 56

what detects the inital tremors or P waves

Back 56

seismometers