4a Volcanic Impacts Flashcards
Social impacts of Mount Merapi Eruption
114 total fatal eruptions in Indonesia
15km of pyroclastic flow
367 dead
277 injured
Tens of thousands evacuated in 2006
226 000 in zone vulnerable to Tephra /lahars and PCF
Economic impacts of Mount Merapi Eruption (monsoon and lahars)
2010-2011 rainy season lahars
860 damaged houses
21 bridges damaged
Threatened Prambanan temples
Economic impact of Mount Merapi Eruption
Yogyakarta airport closed
Livestock killed by ash and PCF
130m2 crops destroyed
Buildings, pipelines, bridges and other infrastructure destroyed
Rockfall closed areas to tourists
Environmental impacts of Mount Merapi Eruption
Erupted in 2001, 2006, 2010
3-4 on the VEI
SO2 -> acid rain on habitats and agriculture
Lahar in the rainy season deposited unconsolidated material
Rivers filled with material (bed raise and flood risk)
Vegetation striped 1300m from summit (agriculture and wildlife)
Political impacts of Mount Merapi Eruption
Directs money from other government schemes - pressure to respond
Short term loss of tourism and agriculture income, long term gain
New volcanic islands formed chases conflict due to 200 potential miles for fishing, mining and military bases)
Densely populated
Rebuild after every eruption (5-10 yrs)
2006 implementation of 8km exclusion zone
Why people chose to live in technically active locations (Indonesia)
Volcanic rock used in construction
Sulfur mining
Farming
Culture and religion (0.16% atheist)
Why people l
