View
251
Download
0
Category
Tags:
Preview:
Citation preview
1977
60 mph
Several hundreds killed
2002
14,000 homes
350,000 flee
15 million cubic yards of lava
Houses buried to the first floor
The Players
Dario TedescoItalianEU funded
“Goma, is the most dangerous city in the world.”
“My greatest fear is to make a big mistake – not to predict and eruption.”
Ken SimsUS vulcanologistUniversity of Wyoming
Rock Climber and mountaineer
Hasn’t owned a TV set for 25 years
Expedition to crater lake led by Sims + Tedesco
Campsite on Terrace
Lowered to cater lake to collect zero-age sample
Every day 7000 tones of Sulphur Dioxide
‘Gas sniffer’ tests carbon dioxidecarbon monoxide + methane
RAD7 testsFor Radon
Why?Volcanoes are gas driven machines
Eruption preceded by:Increase discharged gasVariations chemical composition
Two isotopes of radon measured by radioactive clock – ratio indicates time to surface and chemical composition can be extrapolated.
Prediction piecemeal – so scientists’ visits essentialVolcanic observatory dilapidated one story building in GomaWarning flags bleached and batteredBatteries from sensors looted
Biblio
• William E McNulty + Lisa R Ritter- Illustration
Written by Michael Finkel originallyCollated by MO at sbs
NGM.COM April 2011
Teachers – print panes 6 to 18 as handouts
Recommended