Mt Etna

Question 1

Impacts over time

Answer 1

Only 77 confirmed deaths ever - majority when visitors strayed into hazardous areas

900,000 continue to be at risk

Catania Section of INGV monitored for 20 years

Long history of people managing eruptions

• 1983 explosions diverted 30% lava
• 1992 Jan earth dam built to temporarily hold lava flow

Cafes on slopes

Question 2

Background

Answer 2

Dominates NE Sicily, Italy

‘Russian Doll’ - nested composite volcanoes
•wide variety of eruption styles

Destructive subduction - African beneath Eurasian

Question 3

Phreatic eruptions

Answer 3

Steam driven eruptions