Earthquake, Volcano

Front 1

forms from the heating of the underground water

Back 1

geyser

Front 2

connects magma chamber to surface

Back 2

pipe

Front 3

largest of the lava rock fragments

Back 3

bomb

Front 4

bowl shaped area of rock around the vent of a volcano

Back 4

crater

Front 5

triggered by the earthquakes on the ocean floor

Back 5

tsunami

Front 6

lava and gases leave a volcano through these

Back 6

vents

Front 7

a volcano erupts this way if its magma is low in silica

Back 7

quiet

Front 8

as this increases viscosity decreases

Back 8

temperature

Front 9

underground pocket of magma under a volcano's pipe

Back 9

magma chamber

Front 10

Describes high viscosity lava

Back 10

thick

Front 11

an ingriedient in magma and lava

Back 11

silica

Front 12

lava rock fragments the size of pebbles

Back 12

cinders

Front 13

Created by the collapse of a volcano's magma chamber

Back 13

caldera

Front 14

shield volcano

Back 14

quiet, thin, low silica and low viscosity, gentle sloping sides

Front 15

composite volcano

Back 15

can be explosive or quiet, wide, steep, tall

Front 16

cinder volcano

Back 16

explosive, thick lava, high viscosity, high silica, sticky, steep, thick, lava

Front 17

hot spring

Back 17

heated by magma

Front 18

geyser

Back 18

explodes lava, heated water builds up

Front 19

signs of an active volcano

Back 19

temperature increases, gases released, elevation changes+ surface changes, earthquakes

Front 20

how did hawaii form

Back 20

hot spot formed this island chain

Front 21

how do volcanoes on Hawaii erupt

Back 21

this volcano erupts quiet

Front 22

Richter scale

Back 22

the scale based on an earthquakes stength/magnitude

Front 23

Moment magnitude scale

Back 23

the scale based on an earthquakes stength/magnitude

Front 24

Mercalli Scale

Back 24

the scale based on the damage caused by the earthquake

Front 25

what is a seismograph

Back 25

a device that records ground movements caused by seismic waves as they move through earth

Front 26

whats is seismogram

Back 26

the record of an earthquake's seismic waves produced by a seismograph

Front 27

epicenter

Back 27

the place directly above where an earthquake happens (most damage is done) first place hit on earth

Front 28

focus

Back 28

where earthquake starts inside earth

Front 29

seismic waves

Back 29

energy released from an earthquake

Front 30

tsunumi

Back 30

tidal wave caused by an underwater earthquake

Front 31

P wave

Back 31

primary wave, goes through anything (solids, liquids, gases) moves side to side

Front 32

S wave

Back 32

only goes through solids, moves up and down and side to side

Front 33

L wave

Back 33

surface wave, only goes through solids

Front 34

magma (inside)

Back 34

molten mixture of rock forming substances

Front 35

volcano

Back 35

a weak spot in the crust where magma has come to the surface

Front 36

lava (inside)

Back 36

magma that reached the surface

Front 37

ring of fire

Back 37

formed by volcanoes that rim the pacific ocean

Front 38

island arc

Back 38

the resulting volcanoes create a string of islands

Front 39

what is yellowstone famous for

Back 39

geysers because they have more than anywhere on earth

Front 40

a substance made of two or more elements

Back 40

compound

Front 41

lava begins at this

Back 41

magma

Front 42

smallest of the lava rock fragments

Back 42

ash

Front 43

melted igneous rock on earth's surface

Back 43

lava

Front 44

what type of volcano is Vesuvius

Back 44

composite volcano

Front 45

how does Vesuvius erupt

Back 45

explodes or gentle

Front 46

Yellowstone

Back 46

caldera, supervolcano, has geysers