the restless earth

Question 1

what do tiltmeters do ?

Answer 1

tiltmeters measure the landscape around the volcano for any bulges or movement as little as 1mm

Question 2

what do seismometers do ?

Answer 2

these are usually used to predict earthquakes as they measure the ground for any mo

Question 3

how are thermal imaging cameras used with volcanoes?

Answer 3

used to detect heat surrounding the volcano. As the temperature rises so does the activity.

Question 4

how are chemical sensors used with volcanoes?

Answer 4

when a volcano is due to erupt chemicals are released from the volcano.

Question 5

how can people prepare for a volcanic eruption?

Answer 5

• creating an exclusion zone around the volcano so when it goes off it won’t reach the nearest town or village or town consequently saving lives.
• opening motorways to make them all one way so no traffic jams.
• keeping emergency stores of food.
• making sure every family has meet up points.
• authorities make communication systems to instruct the public to reduce panic

Question 6

What are the benefits of volcanic activity?

Answer 6

• fertile soil good for farming
• tourism and ski slopes in mt vesuvius
• selling rocks for building roads
• geothermal energy in iceland
• creates new land
• hot pools in iceland

Question 7

is the distribution of volcanoes even or uneven?

Answer 7

uneven

Question 8

volcanoes are in a ____ fashion

Answer 8

linear

Question 9

where are the anomaly volcanoes?

Answer 9

pacific ocean

Question 10

why are the volcanoes where they are ?

Answer 10

where the plate boundaries collide and volcanoes are created by divergent and convergent plate boundaries.
anomalies are there because of hot spots.

Question 11

what plate boundary are composite volcanoes formed at?

Answer 11

destructive

Question 12

what plate boundary are shield volcanoes formed at?

Answer 12

constructive

Question 13

why did the montserrat volcano erupt ?

Answer 13

north american plate got dragged under the caribbean plate. new magma rose above the old magma lots of pressure built up until it erupted.

Question 14

what are the secondary effects of montserrat?

Answer 14

unemployment as there was a loss of tourism
lack of homes being rebuilt as no income
travelling the island is hard as the port and airport are closed.
when over 50% of the island not many returned

Question 15

name some primary effects of the montserrat eruption

Answer 15

19 people died
2/3 of island covered in ash 
50% evacuated
Plymouth, the capital became a ghost town
floods occurred from valleys being blocked with ash
water born diseases such as cholera
farm land destroyed
hospitals and schools destroyed

Question 16

name some responses of the montserrat eruption

Answer 16

£41,000,000 was given from the british government as montserrat is british
many riots occurred