1. Kevin Kwong and Tyler Szwarc Volcano Power http://www.volcano.si.edu/world/find_regions.cfm

2. Volcano Power Total energy = movement of volcanic material + energy lost due to cooling of ejected material Movement of Molten Material Cooling of Erupted Material Crust Mantle Rising Ash Plume

3. Movement of Volcanic Material Change in potential energy of lava and ash E lava = m g h m = 1.16x10 13 kg/yr g = 9.8 m/s 2 h = 35 km for continental, 10 km for oceanic 3 oceanic eruptions per continental P lava = 3.15*10 10 W Crust Mantle Ash Lava

4. Movement of Volcanic Material Change in potential energy of lava and ash E ash = m g h m = 6.5*10 10 kg/yr g = 9.8 m/s 2 h = 45 km P ash = 9.1 *10 8 W P total material = 3.25 *10 10 W Crust Mantle Ash Lava

5. Heat released and total energy m= (Volume of Lava= 4x10 9 m 3 /yr)*(Density of Lava=2.9x10 3 kg/m 3 ) = 1.16x10 13 kg/yr c= 1700 J/ kg °C T= 1200°C - 100°C = 1100°C L= 560 J/g P= 7.07 x 10 11 Watts P= P lava + P ash + P Q =7.40 x 10 11 Watts Crust Mantle Ash Lava