SCIENCE

Question 1

its a break in the earths crust along the break, significant movement has taken

Answer 1

fault

Question 2

a short orgin of the earthquake
region where the rocks break

Answer 2

focus/hypocenter

Question 3

the point in earths, above the focus.
the most violent shaking of the ground

Answer 3

epicenter

Question 4

waves of energy caused by sudeen breatung of rock within the earth or an explosion

Answer 4

seismic waves

Question 5

The various of seismic waves (3)

Answer 5

• P wave velocity = 5-8 km/s
• Swave velocity is 40 percent slower
• Surface wave is slowest, but largest

Question 6

What are Earths crust 2 sections?

Answer 6

CONTINENTAL CRUST
OCEANIC CRUST

Question 7

makes up earths landmasses

Answer 7

continental crust

Question 8

found in the ocean floor, usually thinner than continental crust

Answer 8

oceanic crust

Question 9

This push pull is called ____ ?

Answer 9

STRESS

Question 10

The stress force called compression squeezes rock until it folds or break

Answer 10

Compression

Question 11

what is a fault?

Answer 11

Fracture in rocks along which movement occured

Question 12

What are the kinds of Fault?

Answer 12

*Normal fault/Normal dip slip fault
*Reverse dip slip fault/Thrust Fault

Question 13

What are the two blocks of a faulted rock

Answer 13

HANGING WALL
FOOT WALL

Question 14

is a slip fault/wrench fault

Answer 14

Strike

Question 15

the fault that usually where there is displacement

Answer 15

active faults

Question 16

is a fault that structures that can be identified but which do not cause an earthquake

Answer 16

inactive faults

Question 17

what is PHIVOLCS?

Answer 17

Philippine Institute of Volcanology n Seismology

Question 18

They are found in the eintire county of the philippines?

Answer 18

Faults n Trenches

Question 19

Are the deepest part of the oceans, usually V-shaped

Answer 19

Trenches

Question 20

are found close to the continents, near strings of islands

Answer 20

Faults n Trenches

Question 21

Shaking and Trembling of the Earth

Answer 21

Earthquake

Question 22

The most common cause of Earthquake

Answer 22

Faulting

Question 23

Is a giant ocean wave caused by earthquake that occur on the ocean floor

Answer 23

Tsunami

Question 24

What is the world’s worst natural disaster?

Answer 24

Tsunami

Question 25

The point/region where an earthquake ruptures, the rocks breaks

Answer 25

Focus

Question 26

Underground point of origin of an earthquake

Answer 26

Hypocenter

Question 27

The point on Earth’s surface directly above the focus
This where the most violent shaking of the ground occurs

Answer 27

Epicenter

Question 28

The distance between the focus n the epicenter

Answer 28

Focal Depth

Question 29

Are the waves of energy caused by the sudden breaking if rock within the earth or an explosion

Answer 29

Seismic waves

Question 30

Three main types of seismic waves

Answer 30

PRIMARY WAVES (P WAVES)
SECPNDARY WAVES (S WAVES)
SURFACE WAVES (L WAVE)

Question 31

The fastest of the seismic waves
It can move through solid rocks

Answer 31

Primary waves

Question 32

The second wave you feel in an earthquake, is slower than P wave and can only move through solid not through liquid and gasses, move rock particles up n down or side to side perpendicular

Answer 32

Secondary Wave

Question 33

Travels from the focus directly upward to the epicenter

Answer 33

Surface wave

Question 34

3 types of seismic waves

Answer 34

body = a. Primary waves
b. Secpndary wave
Surface - love + rayleigh waves

Question 35

move together + apart like according (fastest)

Answer 35

Primary wave

Question 36

move at right angles to direction of wave travel like a shake

Answer 36

Secondary wave

Question 37

move up + down like ocean waves (slowest) w side to side component

Answer 37

Surface love rayleigh wave

Question 38

an instrumeny that detects measures waves

Answer 38

Seismogram

Question 39

measures how much energy realeses by assigning the earthquake number 1 to 10

Answer 39

Ritcherscale