Eurasian and NA plate moving apart (constructive). This is due to ridge push. As they move apart, magma fills the magma chambers. Pressure builds then boom
Ash fall destroyed crop yields
High areal extent brought EU airspace to standstill. Shares dropped by 3.3% for major airlines. Cost £130m per day in losses
Kenyan fruit + flower exports ruined. 5,000 workers laid off. Lost £1.3m / day.
50,000 extra passengers on euro star
VEI scale of 4. 2010
High silica concentration
Crops contaminated with ash fall
Missing tourists cost £10m / day
2m barrels of jet fuel not used a day
Water supplies polluted
Fishing supply problems due to Iceland being A major exporter
No new flights meant no new scientists to help domestically
Low population density mitigates the pressure and release model