Japan is a country that distinguishes itself by being one of the most geologically unstable places in the world. It has 40 active volcanoes and records 1500 tremors annually, most of which are minor.

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Japan is a country that distinguishes itself by being one of the most geologically unstable places in the world. It has 40 active volcanoes and records 1500 tremors annually, most of which are minor. The last great earthquake to strike Japan was the Great Kanto earthquake in 1923, which killed 142,800 people in Tokyo alone. The size and scale of this earthquake shifted most of Japan’s modern seismic attention to the north of Japan. Little focus of attention for earthquakes was paid to south-central Japan, since it had been without a major quake in over 900 years. But, on Tuesday, January 17th 1995, at 5:46 a.m. an earthquake with a magnitude of 7.2 on the Richter scale struck the city of Kobe. At the time Kobe had a population of 1.5 million people and was supposedly one of the most quake-safe cites in Japan. In spite of the fact that the ground shook for only 20 seconds, Kobe suffered great amounts of geological, structural, social and economical damage. The people of Kobe although in shock, surprisingly remained unmoving. But at the same time they also felt they had been betrayed by a country that had prided itself on being seismically prepared for so long, when it fact it was not. 

     Three significant plates meet near the coast of Japan but only two brought about the Great Hanshin earthquake. The more compact Philippines Plate was disappearing beneath the lighter Eurasian plate and so pressure had been building up. Suddenly, the result of years of pressure was a release of force that shifted the Nojima fault, south of the Osaka Bay. This activity all occurred only 16 miles below the earth’s surface. The fault cut through the north side of Awaji Island, the epicenter of the earthquake, and crossed the bay directly below the city of Kobe. Kobe is 20km from Awaji Island and so seismic waves where given the opportunity to increase in speed, hence causing greater destruction. A decade of repair for the city of Kobe would be needed to amend the damages caused by the direct hit of the Great Hanshin quake. 
  
    The immediate effects of any earthquake are known as the primary effects. In Kobe the primary effect of the Hanshin quake includes the destruction of lifelines, buildings and utilities/services. 
At 5:46 a.m. the earth began to shake, sand grains within Kobe’s abundant water-saturated soil began to loose contact and friction with other grains, causing liquefaction. Soil began to flow apart and the ground reacted by moving 7 inches horizontally and 4 inches vertically. Liquefaction was the beginning of the end for the city of Kobe. Japanese buildings that were built prior to enforcement of the 1981 seismic building code, could not withstand the force of the quake and the liquefaction of the ground. The result was 102,000 buildings collapsing. 

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    The cities lifelines also suffered a great deal. All three railway links to outside cities where destroyed. Kobe’s main elevated motorway had astonishingly collapsed for over a kilometre and those using it soared of into mid-air. Yoshio Fukamoto, a bus driver who had managed to escape his bus while the front half was 6 feet suspended in space, described the situation as, “Like watching a scene from a movie.” Many roads also were elevated from the ground. 

    Most of the utilities and services within the city suddenly came to a halt. Water, gas and electricity ran through underground ...

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