NASA and Ohio State University researchers have discovered the major tsunami generated by the March 2011 Tohoku-Oki quake centered off northeastern Japan was a long-hypothesized "merging tsunami." The tsunami doubled in intensity over rugged ocean ridges, amplifying its destructive power at landfall.
On March 11, 2011, the Great Tohoku Earthquake occurred approximately 70 kilometers off the coast of Japan. This magnitude 9.0 earthquake was closely followed by a massive tsunami that reached 7 meters in height. Using NASA
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Human induced impacts especially rapid urbanization and the growth of world population are some of the contributing factors for global environmental change. In addition, the world has been facing a complexity of episodic disasters like earthquakes, tsunamis etc along with climate-induced disasters like cyclones, floods and droughts.
The earthquake and tsunami that struck the north-eastern coast of Japan on 11 March, was a tragedy for the thousands of people who lost their lives and livelihoods. From the photos and videos documenting the devastation, it would have been difficult to imagine a worse outcome.
When you work with geospatial information, there will be days when all of your scheduled meetings and regular everyday tasks seem insignificant. Your business will be focused in an area that you were not expecting, because every EO company is in the disaster monitoring business. It’s inevitable.
The massive earthquake and tsunami that devastated northeast Japan recently has given rise to a new phenomenon called a complex mega-disaster . Such a catastrophe takes place only when a massive earthquake occurs underneath an ocean, large enough to create movements on the sea floor.
By spatially extensive events, ground-based mapping is too slow, typically hindered by disaster-related site access difficulties, or too dangerous as in the case of potential radioactive contamination resulting from the March 2011 earthquake and tsunami disaster in Japan.