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Discuss the physical and human factors which effect the location and the impact of the earthquake hazard.

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Introduction

Harpal Chima 13A Physical Geography Discuss the physical and human factors which effect the location and the impact of the earthquake hazard Earthquakes are natural hazards that have occurred since the dawn of time. They are products of the Earth's ever-changing face and lead to the movement of the world's tectonic plates. An earthquake is a hazard resulting from major geological processes and the release of energy within the earth leading to catastrophic incidents such as earthquake and volcanic eruptions. The effects of earthquakes can have considerable damage to the physical and human environments and the impact and location of an earthquake can alter the damage of the process. Earthquakes are most likely to occur at the boundaries of the lithospheric plates. They occur from movements along fractures in rocks called faults. Movements occur along the faults because of the stress put upon the area due to crystal movement, the stress is not released gradually but it builds up and becomes so great until the rocks are forced to shift suddenly along the fault. ...read more.

Middle

water thus increasing the strength of the hazard and also it will create tsunamis which means that the amount of damage that the hazards brings will be increased. Another physical factor that can effect the impact of the earthquake is the foundation material that the area above the focus is developed upon. If the foundation rock is granite then the shock waves will become absorbed more reducing the damage that the earthquake brings, but if the rock type is weaker such as limestone then the shock waves will not reduce in strength and the impact of the earthquake will increase in destruction. Another physical factor which can effect the impact of an earthquake is the duration of the shaking, the longer the shaking the more damage the earthquake will cause. This will mean that the impact of the hazard will increase in damage if it occurs for long stretch rather than occurring in small shakes. The human factors differ greatly from the physical factors but exert the same or more amount of damage. ...read more.

Conclusion

How well a warning system can save many human lives and thus restrict the impact of an earthquake, thus in MEDC's as they are more economically stable are able to spend upon high-tech warning systems and thus people will be saved from the damage of the earthquake. But in LEDC's the government is not as rich and thus cannot spend money on warning systems thus the impact of an earthquake would increase. How developed a nation is will determine how much will be spent upon decreasing the impact of an earthquake, although MEDC's cannot stop earthquakes from occurring they can restrict the amount of damage that occurs. LEDC's are not able to spend highly upon earthquake resistant infrastructure and thus the impact of the earthquake would be greater at LEDC's than MEDC's. Thus in conclusion it can be said that the location of an earthquake is most likely to be determined by physical factors. But the impact that an earthquake can be determined by both human and physical factors, thus the impact of an earthquake cannot be solely related to either human or physical factors. ...read more.

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