Topographical monitoring The shape of the volcano may change prior to an – eruption Volcanic gases The amount of gases released may change in particular the rate at – which sulphur dioxide is produced Why people live near volcanoes Very fertile soil new minerals are brought to surface – Born in the area/family Topographic and orographic rainfall may increase amounts of water in area 9/10 people living in volcanic areas are in developing nations and are often uneducated/unaware of volcanic dangers Earthquake hazards Earthquake Nature Effect on Effect on people environment Tsunamis A series of waves Can cause Can kill large caused by devastating damage amounts of people in displacement of a on ecosystems and coastal areas. large volume of organisms, marine People are swept water life, trees, land away and buildings may collapse Building collapses Due to seismic Can destroy human Potential loss of life, which travel and environment. May homes and economic cause to ground to pollute the damage shake biophysical environment through water and pollutants Fire Caused by downed Can cause damage to Potential loss of life, powerlines, human environment, destroys homes explosions. Can may damage Economic damage spread rapidly biophysical through a destroyed environment city Liquefication Saturated soil looses Building can loose Causes death to strength in response support, can cause people especially if to stress. damage to piping inside a building Earthquakes cause systems water in to soil upwards to the surface Volcano Hazards
Topographical monitoring – The shape of the volcano may change prior to an eruption Volcanic gases – The amount of gases released may change in particular the rate at which sulphur dioxide is produced Why people live near volcanoes Very fertile soil – new minerals are brought to surface Born in the area/family Topographic and orographic rainfall may increase amounts of water in area 9/10 people living in volcanic areas are in developing nations and are often uneducated/unaware of volcanic dangers Earthquake hazards Earthquake Nature Effect on environment Effect on people Tsunamis A series of waves caused by displacement of a large volume of water Can cause devastating damage on ecosystems and organisms, marine life, trees, land Can kill large amounts of people in coastal areas. People are swept away and buildings may collapse Building collapses Due to seismic which travel and cause to ground to shake Can destroy human environment. May pollute the biophysical environment through water and pollutants Potential loss of life, homes and economic damage Fire Caused by downed powerlines, explosions. Can spread rapidly through a destroyed city Can cause damage to human environment, may damage biophysical environment Potential loss of life, destroys homes Economic damage Liquefication Saturated soil looses strength in response to stress. Earthquakes cause water in to soil upwards to the surface Building can loose support, can cause damage to piping systems Causes death to people especially if inside a building Volcano Hazards
Earth__Enviromental_Science_Notes_-_Tectonic_Impacts_3.docx