1. Volcanic Hazards and Benefits

2. Pyroclastic flows

3. Lava Flows Mauna Loa

4. Lahars

5. Ash Fall Branches break Building collapse Ash plume

6. Gold

7. Copper

8. Granite

9. Diamonds

10. Blue Lagoon, Iceland – Tourist Attractions The Blue Lagoon (Icelandic: "Bláa Lónið") geothermal spa is one of the most visited attractions in Iceland. The steamy waters are part of an other- worldly lava formation.IcelandicgeothermalIcelandlava The warm waters are rich in minerals like silica and sulfur and bathing in the Blue Lagoon is reputed to help many with skin diseases like psoriasis. Water temperature in the bathing and swimming area of the lagoon averages 40C (104F).silicasulfurpsoriasis The lagoon is fed by the water output of a nearby geothermal power plant. Superheated water is vented from the ground near a lava flow and used to run turbines that generate electricity. After going through the turbines, the steam and hot water passes through a heat exchanger to provide heat for a municipal hot water heating system. Then the water is fed into the lagoon for recreational and medicinal users to bathe in.geothermal powerturbines heat exchanger

11. Emerald Pool at Yellowstone National Park & the Geyser Old Faithful – Tourist Attractions

12. Geothermal Power in California – there are 14 areas where geothermal power is used to make electricity

13. Heimaey, Iceland – new land created by lava flow enhanced shelter at the harbour 1973 lava flow – eruption of Eldfell

14. Fertile soils, Etna in Sicily Adventurers & tourists attracted to the area

15. Mt Fuji, Japan – natural beauty

16. Crater Lake, Oregon – natural beauty

17. Defensive sites - Edinburgh 1780

18. Opportunity to study plant succession e.g. on Surtsey