LEDC Volcanic Eruption Flashcards
What was the date of the event? (Nyiragongo tectonics)
17th January 2002
What is the location of the event? (Nyiragongo tectonics)
Democratic Republic of the Congo
West of the Rwanda boarder
African Rift Valley
What is the average life expectancy? (Nyiragongo tectonics)
59 years
This is one of the most active volcanoes in the world but least studied, why? (Nyiragongo tectonics)
constant warfare
What is the plate boundary of this volcano? (Nyiragongo tectonics)
- diverging plate boundary
- located on a triple junction (Arabian and 2 African plates are pulling apart)
What type of volcano is this? (Nyiragongo tectonics)
- Strata volcano
- 3,470 metre elevation
How large is the caldera at the summit? (Nyiragongo tectonics)
2 km wide
What type of lava is present? (Nyiragongo tectonics)
- Basaltic lava
- Low viscosity
- High temperatures
What type of minor extrusive activity is associated with this volcano? (Nyiragongo tectonics)
Fumeroles
What type of eruption was it? (Nyiragongo tectonics)
Fissure on the South Flank
Where did the lava reach during the eruption? (Nyiragongo tectonics)
Lake Kivu - lake turnover
What short term impacts occurred? (Nyiragongo tectonics)
- 45 dead (within 24 hours)
- 147 death toll
- 300,000 evacuated
- 14 villages destroyed
- Cholera breakout
What long term impacts occurred? (Nyiragongo tectonics)
- 20,000 left homeless
- schools delayed rebuilding (lost generation)
- 350,000 still aid dependent one month on
- 500,000km2 of nation parks destroyed (home to endangered gorillas)
What short term management and response schemes occurred? (Nyiragongo tectonics)
- Redcross warning system identified refugee sites
- Full evacuation of Goma
- UN brought humanitarian aid
- High energy rations
- UN set up camps costing $15 million
- Pop up medical tents
What long term management and response schemes occurred? (Nyiragongo tectonics)
- International Community funded an observatory so people could be warned earlier
- Children at schools are now educated on the effects of volcanoes
- Efforts made to reunite families