Calbuco, Chile Volcano Case Study

Question 1

Where is this volcano located?

Answer 1

Los Lagos, Chile

Question 2

In which mountain range will you find Calbuco?

Answer 2

The Andes

Question 3

When did the volcano last start to erupt?

Answer 3

22nd April 2015

Question 4

What was the VEI of the 2015 eruption?

Answer 4

4

Question 5

What is special about Calbuco’s location?

Answer 5

It is on a triple junction

Question 6

What is the name of mid-oceanic ridge?

Answer 6

The Chile Rise

Question 7

What is unusual about the Chile Rise?

Answer 7

It is being subducted

Question 8

Which plate is subducting the Chile Rise?

Answer 8

The South American plate

Question 9

Where is the Chile Rise being subducted?

Answer 9

At the Peru-Chile trench

Question 10

Did anyone die as a result of the 2015 eruption?

Answer 10

No

Question 11

What had happened just a month before the eruption?

Answer 11

There had been floods in the north of the country and another volcano had also erupted.

Question 12

What are 3 key dates in relation to this event?

Answer 12

22nd April
23rd April
1st May

Question 13

What happened on the 22nd April?

Answer 13

Scientist detect an earthquake and one hour later, the volcano erupts.

Question 14

On the 22nd April, how long did the eruption last?

Answer 14

90 mins

Question 15

How big was the ash column that was created on the 22nd April?

Answer 15

49,000 feet

Question 16

Where did the ash cloud drift to and what did it do?

Answer 16

It moved northeastwards and covered towns up to 18 miles away.

Question 17

How long did the second eruption last for?

Answer 17

6 hours

Question 18

When did the second eruption take place?

Answer 18

23rd April at 1pm

Question 19

How many earthquakes were recorded during the second eruption?

Answer 19

Over 150 per hour

Question 20

What else was produced as a result of the second eruption?

Answer 20

Another column of ash similar to the first one

Question 21

What happened on the 1st May?

Answer 21

The volcano erupted for the third time in 8 days.

Question 22

How many people were evacuated after the third eruption?

Answer 22

2,500- some of which had just returned from being evacuated earlier.

Question 23

What was the radius of the evacuation zone created on the 22nd April?

Answer 23

12.5miles

Question 24

Was the third eruption more or less intense than the others?

Answer 24

Less intense

Question 25

What had to be cancelled as a result of the eruption?

Answer 25

Flights

Question 26

Which problem, related to the ozone layer, became worse as a result of the event?

Answer 26

There was more ozone depletion with the Antarctic ozone hole increasing in size.

Question 27

What agricultural problem occurred as a result of the eruption?

Answer 27

Crops failed

Question 28

What percentage of Chile's population works in the agricultural sector?

Answer 28

9.64%

Question 29

How much would the eruption cost the local economy?

Answer 29

$600 million

Question 30

How many cancellations did hotels see for the long weekend?

Answer 30

10%

Question 31

What type of farms were contaminated with lahars?

Answer 31

Salmon farms

Question 32

How far did the lahars travel?

Answer 32

9 miles

Question 33

What three plates are part of the triple junction?

Answer 33

Nazca South American Antarctic

Question 34

Which plate is being subducted?

Answer 34

The Nazca plate

Question 35

How much warning did people have before the first eruption?

Answer 35

One hour

Question 36

What are 3 environmental impacts of the eruption?

Answer 36

Lahars and pyroclastic flows contaminate water sources. Habitats and ecosystems destroyed or disrupted. Reduced visibility

Question 37

What are 3 economic impacts of the eruption?

Answer 37

Cleaning up water sources and land is expensive More money needs to be invested in mitigation and prediction Rebuilding infrastructure is expensive

Question 38

What are 3 social impacts?

Answer 38

Injures and trauma Disruption to routine Jobs in tourism as people come to visit the volcano

Question 39

Why might people visit the volcano?

Answer 39

Scenery Hot weather (in Chile) Horse riding Trekking

Question 40

Why might people live near the volcano?

Answer 40

Fertile soil

Question 41

How many people were evacuated after the first eruption?

Answer 41

4000

Question 42

How many sheep and cattle had to be evacuated?

Answer 42

4000

Question 43

What had to be closed?

Answer 43

Schools

Question 44

Which city had to have emergency measures put in place?

Answer 44

Bariloche

Question 45

How far away from the volcano is Bariloche?

Answer 45

100km

Question 46

Why were emergency measures put in place for Bariloche?

Answer 46

Because of the movement of the ash cloud.

Question 47

What was difficult to clean up?

Answer 47

The 210million m3 of ash

Question 48

What is Chile's emergency plan called?

Answer 48

Chile Prepares

Question 49

What happens as a result of Chile Prepares?

Answer 49

Each region has 6 emergency evacuations each year.