• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

The study of earthquakes.

Extracts from this document...


The study of earthquakes is called Seismology, and has always been a vital source of information in regards to the specific functioning of the earth. If man did not know about earthquakes we would not have know that the earth is not one solid ball, but instead made of interconnected plates. Conversely, it could be said that without plate tectonics, there would be no earth quakes. In this essay I will be discussing one of the worlds worst natural disasters, and how predicting them benefits the public. earthquakes are made of different parts, the origin, called the focus. Since this is often deep below the surface and difficult to map, the location of the earthquake is often referred to as the point on the earth surface directly above the focus. This point is called the epicentre. There are a two major theories as to how earthquakes occur, but the most widely accepted. "Is involving slipping faults and the elastic rebound theory" (Skinner, Porter,2000;428) ...read more.


They cannot move through liquids. On the surface of the earth, S-Waves are responsible for the sideways displacement of walls and fences. S-Waves move particles at 90 degrees to the waves direction. Earthquakes are cause to much damage over the entire earth, they cause damage to both environment and to residential areas. Because earthquakes are a threat to humans, we are required to research them and come up with methods to predict when we can expect a quake to occur. Earthquakes are a serious natural hazard in many parts of the world. They often seem to strike without warning, sometimes inflicting massive damage and casualties. Often they occur in predictable areas such as plate margins where earthquakes have occurred in the past, scientists are left with little to no option but to come up with a way to warn the public when this natural hazard could occur. Because earthquakes are so devastating, there is great interest in the study of predicting earthquakes. ...read more.


People can prevent maximum damage by using the 'squat' method, and building there houses low and wider, with deeper foundations, making it harder for the house to fall down in the occurrence of an earthquake. There is nothing we as humans can do to prevent an earthquake from occurring, but we can research and try find new ways to prevent major casualties and monetary losses to an area struck by an earthquake. "one well known successful prediction was the Haicheng, China earthquake of 1975, when an evacuation order was sent out the day before an 7.3 rated earthquake on the Richter scale struck." (Ludwin, R, 2002, Earthquake Prediction [on-line]). In conclusion we have seen just how lethal and destructive an earth quake can actually be if occurs in a populated area. We see how humans are not the only ones affected, and how the environment is destroyed as well. Hopefully in the future, as the machinery becomes more scientific, we, as scientists would have found a more accurate method in predicting earthquakes, to prevent any further major casualties and destruction in the future. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Hazardous Environments section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Hazardous Environments essays

  1. Title : The Determination of Microbial Numbers Objectives:Practically every phase of microbiology requires ...

    From the calculation to determine the number of bacteria or colony forming units per mL of the original sample, we obtained 400 000 of cfu mL-1. This figure represents the number of bacteria present in a milliliter of the original sample.

  2. Preparation of media and reagents & aseptic technique and pure culture

    The plate was incubate and inverted at 37 �C. The plate was then examined for colony morphology and presence of possible contamination. Streaking method Produce B - Pour plate technique The bottom of sterile Petri dishes was labeled name, date and temperature of incubation. Melt agar was used as a medium.

  1. Free essay

    Geography essay - earthquakes

    With the Kobe earthquake (1995) there were less strict building regulations which led to high death toll of over 6,300. In poorer parts of the world building design is often inadequate, even though building design standards are in place they are rarely enforced, which was the case for Mexico City (1985).

  2. Effects of Earthquakes.

    The lowest rating (I) is one which is felt by very few people and the highest (XII) is one which causes total destruction. An earthquake with a magnitude of 3 to 4 on the Richter scale is roughly equivalent to II to III on the Mercalli scale and a magnitude

  1. What Are Earthquakes?

    The epicentre of a particular earthquake can be located by using the 'LAG-TIME'. Which is the time delay between the P Wave reaching the Seismometer and the S wave reaching the seismometer.

  2. What Is Seismology??

    We can tell how dense the earth is by measuring seismic waves and the earth's motion. Scientists have found that the inner core is much too dense to be made out of rock.

  1. Volcanic and seismic events are major pieces of evidence towards proving that plate-tectonics theory ...

    Wegener believed that continents had once been joined together in a ?super continent?, Pangeam and then they split into fragmants to move locations. However despite the wealth of geological evidence that Wegner collected he was unable to explain the mechanisim by which this movement occurred.

  2. Why might predicting earthquakes be a near impossible goal?

    as the earthquake did not hit until 2004, which was only eleven years late. Therefore, this shows predicting earthquakes is near impossible, because signs of an earthquake are very subtle and these signs can disappear in a small space of time, meaning it is hard to gauge when the next earthquake will occur.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work