Hazards

Question 1

define a natural event

Answer 1

no risk to humans or property

Question 2

define a natural hazard

Answer 2

poses risk to humans or property

Question 3

define a natural diaster

Answer 3

actually causes damage to humans or property and prevents life from continuing normally

Question 4

what is the origin of natural events, hazards and disasters?

Answer 4

natural origin and not man made

Question 5

what are the types of hazards?

Answer 5

-geophysical/ tectonic
-geomorphological/geological
-atmospheric
-hydrological
-biological

Question 6

what are geophysical/tectonic hazards driven by?

Answer 6

driven by the heat of the core

Question 7

how hot is the core?

Answer 7

4000°C

Question 8

why is the core so hot?

Answer 8

-pressure
-super heated solid
-radioactive decay

Question 9

what is a super heated solid?

Answer 9

should be a liquid but can’t because not enough space

Question 10

describe geomorphological/ geological hazards

Answer 10

movement of rocks/soil

Question 11

what are atmospheric hazards driven by?

Answer 11

driven by the movement of wind and water in the atmosphere

Question 12

give an example of a geophysical/tectonic hazard

Answer 12

volcanoes and earthquakes

Question 13

give and example of a geomorphological/geological hazard

Answer 13

landslides

Question 14

give an example of an atmospheric hazard

Answer 14

tropical storms, depressions, droughts

Question 15

what are hydrological hazards driven by?

Answer 15

water bodies, mainly the oceans

Question 16

give some examples of hydrological hazards

Answer 16

floods, storm surges, tsunamis

Question 17

give some examples of biological hazards

Answer 17

forest fires, disease, plagues

Question 18

what can hazards be?

Answer 18

human or natural

Question 19

give some examples of human hazards

Answer 19

-explosions
-chemical release
-nuclear incident

Question 20

give some examples of natural hazards

Answer 20

-earthquakes
-volcanic
-landslides
-storms
-wildfires
-floods

Question 21

how can natural events be the result of human actions?

Answer 21

floods by poor land use or humans igniting a fire by carelessness

Question 22

what is the model that describes the difference between a natural event, hazard and disaster?

Answer 22

Dregg’s model

Question 23

how is a natural disaster different from a natural hazard?

Answer 23

a disaster is a matter of scale- it is simply bigger than a natural hazard

Question 24

when does a natural hazard become a natural disaster?

Answer 24

it depends on how vulnerable the people who are exposed to it are

Question 25

who are the most vulnerable people when exposed to natural hazards?

Answer 25

LICs

Question 26

what are some examples of people who are vulnerable to natural hazards?

Answer 26

-bangladesh -favelas in brazil

Question 27

how are the people in bangladesh vulnerable to hazards?

Answer 27

they are vulnerable to floods and cyclone as they are on a delta which is really low lying and are in a cyclone area

Question 28

how is a delta formed?

Answer 28

created by loss of energy when river hits sea

Question 29

how are the people in favelas in brazil vulnerable to hazards?

Answer 29

these are informal settlements on the mountains which can be prone to landslides

Question 30

what are the common characteristics that all natural hazards share?

Answer 30

-each hazard has clear origins and distinctive effects -little or no warning -exposure to risk may be involuntary -most damage and loss of life occurs shortly after the hazard, but impacts may last into the future -their scale and impact requires an emergency response