natural hazarda

Question 1

what is a natural hazard?

Answer 1

a natural event that poses a serious threat to human life of property

Question 2

what is a geological hazard?

Answer 2

caused by land and tectonic processes

Question 3

name two examples of geological hazards

Answer 3

volcanoes and earthquakes

Question 4

what is a meteorological hazard?

Answer 4

caused by weather and climate

Question 5

name two examples of a meteorological hazard

Answer 5

tropical storms (typhoons / cyclone)

Question 6

what is hazard risk?

Answer 6

the probability of people being affected by a hazard in a particular area

Question 7

name factor #1 that affect the hazard risk

Answer 7

vulnerability : the more people that are in an area exposed to natural hazards, the greater the probability they will be affected.

Question 8

name factor #2 that affect the hazard risk

Answer 8

The better population can cope with an extreme event, the lower the risk of them being severely affected

Question 9

what is a primary effect

Answer 9

immediate impacts

Question 10

name 4 examples of a primary impact

Answer 10

1. buildings & roads destroyed
   2.people injured or killed (eg when buildings collapse)
2. crops and water supplies damaged
3. electricity cable & gas pipes damaged
   (cutting off supplies)

Question 11

what is global atmospheric circulation?

Answer 11

the transfer of heat from the equator to poles by the movement of air

Question 12

what does warm rising air cause?

Answer 12

a low pressure belt

Question 13

what does cool sinking air create?

Answer 13

high pressure belt

Question 14

when did Typhoon Haiyan land and where?

Answer 14

Philippines on 8th Nov 2013

Question 15

what was the maximum wind speed that typhoon haiyan reached?

Answer 15

314km/hour

Question 16

what were the 2 worst affected areas and why?

Answer 16

Tacloban and Cebu - Storm surge with waves of 2.3m combined with high tides meant Tacloban was hit with waves of 5m

Question 17

Primary effects of typhoon haiyan

Answer 17

8000 killed
1+ million homes damaged or destroyed
1.9 million left homeless
costs of $13 million

Question 18

secondary effects of typhoon haiyan

Answer 18

-flooding triggered landslides blocking roads
-5.6 mil lost their jobs after businesses and agricultural land was destroyed
-lack of clean water = disease (dysentery)

Question 19

immediate responses of typhoon haiyan

Answer 19

-warnings broadcasted about typhoon before it made landfall (evacuating 800k)
-fishermen warned not to go to sea
-Philippines declared a state of emergency = charities offering aid

Question 20

long term responses for typhoon haiyan

Answer 20

-UN appealed for over $300 mil to help fuj rebuilding
-charities built storm resistant housing
-Ps’ tourism board encouraged tourism

Question 21

how will global warming affect tropical storms?

Answer 21

distribution , frequency , intensity

Question 22

why would frequency change?

Answer 22

oceans will stay at 27 or higher for LONGER so LONGER PERIOD when ts can form = more storms

Question 23

why would distribution change?

Answer 23

average ocean temp rises, more of the worlds oceans will be above 27c = ts may form in areas they haven’t before

Question 24

why might intensity change?

Answer 24

higher sea temp means more evaporation and increased cloud formation so more energy is released = more powerful