Mt Nyiragongo - volcanic eruption LIC Flashcards

(28 cards)

1
Q

Where is Mt Nyiragongo?

A

Virunga mountains in Democratic Republic Of Congo associated with African Rift Valley

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2
Q

How big is the main crater of the volcano?

A

250 metres deep, 2 km wide and contains a lava lake

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3
Q

How many times has it erupted since 1882?

A

34 times

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4
Q

What is lava like at this volcano?

A

runny and moves downhill at speeds of up to 90 km an hour

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5
Q

What is Goma part of?

A

a fertile agricultural region

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6
Q

What is the altitude of Goma?

A

1,500 metres

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7
Q

What have encouraged people to live here?

A

fertile volcanic soils and the extended growing season

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8
Q

When did Mt Nyriagongo erupt?

A

January 2002

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9
Q

What were there warnings sent out about?

A

the lava flows

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10
Q

How big was the fissure?

A

13 km opening on the southern flank of the volcano

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11
Q

What was it recorded on the VEI scale?

A

1

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12
Q

How many inhabitants in Goma?

A

over 200,000

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13
Q

What did lava flows destroy?

A

1/3 of Goma, and northern third of the runway

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14
Q

How many health centres and hospitals destroyed?

A

3 health centres, 1 hospital

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15
Q

What was the death toll?

A

147

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16
Q

How many people fled to Rwanda?

17
Q

What entered Lake Kivu?

A

sulphurous lava which poisoned water

18
Q

What was there a fear of regarding Lake Kivu?

A

the rise in temperature due to the lava could allow toxic gases to be released from the lake bed

19
Q

What were some of the earthquakes which accompanied the eruption measured as?

A

5 on the richter scale

20
Q

What occurred within abandoned homes?

21
Q

What was the initial response?

A

authorities issued a red alert which enabled a full evacuation to take place

22
Q

What was the UN able to do two days after the eruption?

23
Q

What did emergency rations initially consist of?

A

high energy biscuits, maize/beans/cooking oil

24
Q

What were set up to help displaced people?

25
What was the cost of the eruption?
$15 million
26
How many people were evacuated?
400,000
27
What made it difficult to monitor?
Unrest in the country
28
What have they now done to help future eruptions?
Regular data gathering Volcanic observatory Practice drills