Tectonic activity can range from volcanic eruptions to earthquakes which themselves create many other effects that will impact the surrounding environment and people. In all recent eruptions at the volcanos I am going to discuss there has been no deaths to the local people. Apart from at the Chaiten volcano, in Chile, where 1 person died, reportedly from stress. At this volcano an eruption in 2008 caused 5000 people to be evacuated from nearby towns. An eruption at Montserrat in 1995 also caused 5000 people to be evacuated and placed into temporary shelter. Whereas when the Eyjafjallajokull volcano, in Iceland, erupted in 2010 around 500 people were evacuated from the area, although 10 million airline passengers were affected due to the vast ash cloud. In the 1991-1993 eruption of Mount Etna many people were evacuated and subsequently lost their homes to the lava flows. Other impacts of volcanic activity at Mount Etna were that there was a contaminated water supplies which was also seen at the Chaiten and Eyjafjallajokull volcanic eruptions. There was also many crops and farmland destroyed at Etna along with Montserrat. In The Chaiten eruption 80-90% of the town was damaged with 20-30% of it being completely destroyed, which when compared the eruption in Iceland is far more as there was no towns surrounding the volcano. At the Chaiten Montserrat and Icelandic eruptions, airports were closed which resulted in a huge fall in trade, however in Chile it was completely destroyed! The most environmental impacts were from the Icelandic eruption as there was 015m tonnes of carbon dioxide added each day to the atmosphere along with flooding due to the silting up of rivers and the melting of the 150m thick ice cap. However a positive environmental impact was that there was a boost the phytoplankton in the Atlantic Ocean as they fed on the iron in the ash.
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