Video of skyscrapers swaying during an earthquake in Japan, gives almost dizzy.
buildings over 80 floors swaying from side to side due to strong movements caused by the earthquake which arose at that time ...
Apart from a good training to their citizens, sophisticated measures that warn of tsunami warning, defense bunkers ... Japan has some building codes quite stringent to make their buildings are built to cope with earthquakes of magnitudes higher success. Over the years, the country has been gaining experience and improving preventive system, with deep foundations that dampen seismic energy, or a foundation in the carrier system, which causes it to move independently from the rest of the structure. Japan uses the system Hybrid called mass dampers (vibration diffusers at the base of the buildings), the seismic isolation foundations of buildings.
Source: akronoticias, youtube
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