At last for conservations margins, the tension build up when plate are grinding past each other get stuck. Afterwards the plate will finally jerk past each other and sending out shock waves which is vibrations which is earthquakes. They both create lots of impact. For examples for the volcano eruption in Montserrat which is a LEDC, it cause 19
'The extent to which volcanic processes represent hazards depends on where and when they occur.' Discuss this statement. Volcanic processes become a hazard when they impact upon the human and built environments, killing and injuring people, burying and collapsing buildings, destroying infrastructure and bringing agricultural activities to a halt. Volcanic hazards are influenced by several factors including location, time and frequency of eruptions, and the materials ejected. It is the viscosity of magma that largely determines the nature and power of an eruption and the resultant severity of the hazard.
a) Suggest reasons why these earthquakes had such varied consequences. The earthquakes had such varied consequences because different countries can respond better then others and are more prepared for disasters. Some countries are more economically developed in such a way they are able to have earthquake resist building to this extent they don’t fall over and cause more damage to the area or kill people. Also timing is a big issue due to if an earthquake occurs at night-time most people are sleeping there are less people are out at night so this will be more save to be in your house. Countries that are more developed are usually prepared for the earthquake to occur because warnings around the area go out to make sure everyone knows that an earthquake is going to occur.
Hazards are complex. They all vary in effects however generally; a hazard is anything that could cause damage to humans or buildings. Many volcanic and seismic events happen, cause hazards to humans. Volcanic and seismic events can take place all over the world and therefore both more economically developed countries (MEDCs) and less economically developed countries (LEDCs) can be affected. In the last 30 years there have been multiple examples of where volcanic and seismic events have had an impact on both MEDCs and LEDCs.
Discuss the view that the impact of the earthquake hazards depends primarily on human factors? An earthquake, a sudden violent shaking of the ground can be caused by a number of things from seismic activity and resulting in varying impacts. The cause of an earthquake are a result of built up pressure under the earth’s crust, the pressure comes from the movement of the tectonic plates, they can occur on any plate boundaries. Although the majority of the earthquake hazards come from the physical factors, human factors can determine the severity of the event. The impacts created from an earthquake can come from the physical factors of the size, the location of the epicentre and the surrounding areas such as a ground type and the lithology of the rocks.
Seismic events prove that it is a problematic for the world's population and produce devastating effects on the lives of everyone involved. However it is often said that LEDCs suffer much more from the effects of earthquakes than MEDCs. Whilst this is a generalisation it is probably true, at least in terms of the human cost. Poverty is the condition of lacking basic human needs such as nutrition, clean water, health care, clothing, and shelter because of the inability to afford them. There are several levels of poverty from an individual to national level and earthquake disasters impact at all levels.
Geography essay: seismic hazards (retry) Discuss the view that the impact of earthquake hazards depends primarily on human factors. (40 marks) JUNE 2011 I agree with the statement that the impact of earthquake hazards is primarily due to human factors. Although there are some non-human factors, the impact depends strongly upon population density, construction codes and emergency preparedness which are all due to human activity. Earthquakes are formed due to the movements within the earth and on the crust. The lithosphere is divided into 7 major plates, including the North-American plate, and several minor plates.
Analyse the factors that cause differences in the hazards posed by volcanoes around the world (40 marks) Volcanic hazards pose a risk to people and their property in both primary and secondary form. A volcano is an opening in the Earth's crust which lava, ash and gases erupt. A volcanic eruption can cause many deaths, illnesses, destruction of infrastructure, crops and livestock, all which will affect the economy and GNP of a country. There are many factors involved which cause differences in the severity of the destruction caused by a volcano, such as, locations of settlements, monitoring, plate boundaries and the economic status of a country, however these are different for each volcano around the world. I will be discussing factors that cause differences in hazards posed by volcanoes.
Why was Haiti so deadly? In this article I’m going to discuss why the Haitian earth quake was so deadly. First I will identify the natural factors (both primary and the secondary effects), then discuss the human factors. There are many reasons why earth quakes are deadly and here are those reasons; the first one may seem quite obvious but the size of the earth quake, also its proximity to the surface, how dense the population is near to the epicentre and whether the area is heavily urbanised and sadly all these are features of the Haiti quake. But poverty can also take a large toll as it increases a country’s vulnerability.
The primary effected area would be the damage of infrastructure, loss of power, fires and other potentially catastrophic hazards. Much of San Diego is located in low lying valleys and in a densely populated central business district, because of the strong concentration of people damage and loss of life from collapsed infrastructure and debris would be great. According to (Guzzetti& Carrara 1993 ) It is the location to human population that is key distinguishing feature of population risk .Furthermore much of the secondary effects like the loss/damage to property can be severe, according to (californiagreensolutions.com) in the past 26 years an accumulated amount of 19.43 billion dollars of damage has been attributed to catastrophes, and 19.43 billion has been related to earthquake damage. Conclusion Through my findings and research I have found that the two most common natural disasters that San Diego and its outlying areas are susceptible to are wildfires and earthquakes. Although the frequencies for earthquakes are relatively low the possible of catastrophic damage from one is a major possibility during the next 20 years.