4

Question 1

a trembling or a shaking movement of the ground, caused by the slippage or rupture of a fault within the Earth’s crust

Answer 1

earthquake

Question 2

a weak to violent shaking of the ground produced by the sudden movement of rock materials below the earth’s surface.

Answer 2

earthquakes

Question 3

earthquakes originate in ______

Answer 3

tectonic plate boundary

Question 4

is point inside the earth where the earthquake started

Answer 4

focus / hypocenter

Question 5

The focus is point inside the earth where the earthquake started, sometimes called the ______

Answer 5

hypocenter

Question 6

the point on the surface of the earth directly above the focus is called the _______

Answer 6

epicenter

Question 7

how many ways to measure a strength of an earthquake

Answer 7

2 - magnitude / intensity

Question 8

is proportional to the energy released by an earthquake at the focus.

Answer 8

magnitude

Question 9

It is calculated from earthquakes

      recorded by an instrument called seismograph

Answer 9

magnitude

Question 10

It is represented by Arabic Numbers (e.g. 4.8, 9.0).

Answer 10

magnitude

Question 11

_______ on the other hand is the strength of an earthquake as perceived and felt by people in a certain locality.

Answer 11

Intensity

Question 12

numerical rating based on the relative effects to people, objects, environment and structures in the surrounding.

Answer 12

intensity

Question 13

is generally higher near the epicenter. It is represented by Roman Numerals (e.g. II, IV, IX). In the Philippines

Answer 13

intensity

Question 14

is an earthquake of similar or lesser intensity that follows the main earthquake.

Answer 14

aftershock

Question 15

sudden slipping or movement of a portion of the earth’s crust accompanied and follow by series of vibrations.

Answer 15

earthquake

Question 16

the place on the earth’s surface directly above the point on the fault where the earthquake ruptures began.

Answer 16

epicenter

Question 17

the strength of earthquake based on the effects a person experiences during an earthquake, and on the damage it caused.

Answer 17

intensity

Question 18

the amount of energy is released which is computed from the
5. Amplitude of the seismic waves.

Answer 18

magnitude

Question 19

these are the vibrations that travel outward from the
earthquake

Answer 19

seismic waves

Question 20

is a recording instrument used by the scientists to determine the strength and location of earthquake. It is equipped with sensors called seismometers that can detect ground motions caused by seismic waves.

Answer 20

seismograph

Question 21

how are earthquakes measured

Answer 21

intensity & magnitude

Question 22

what to do in an earthquake

Answer 22

drop
cover
hold on

Question 23

Many people are frightened; many run outdoors. Some people lose their balance. Motorists feel
like driving in flat tires. Heavy objects or furniture move or may be shifted.

Answer 23

very strong

Question 24

People are forcibly thrown to the ground. Many cry and shake With fear.
*

Answer 24

devastating

Question 25

A sudden slipping or movement of a portion of the earth’s crust accompanied and follow by series of vibrations.

Answer 25

earthquake

Question 26

A sudden slipping or movement of a portion of the earth’s crust accompanied and follow by series of vibrations.

Answer 26

earthquake

Question 27

Is generally higher near the epicenter. It is represented by Roman Numerals (e.g. II, IV, IX).

Answer 27

intensity

Question 28

4 types of seismic waves

Answer 28

surface - rayleigh, love body - primary, secondary

Question 29

types of waves

Answer 29

primary secondary love rayleigh