When a series of storms and twisters hit at least 10 states in the USA at the end of February, many victims used social media channels to report their status or those of neighbors and friends. That way they could indicate their exact location to family or search parties by just a single tweet or a facebook post. The app "Foursquare" for example allows users to "check in" to specific locations. Twitter's twittermap works similarly showing users' location on Google Maps. Facebook's Places page allow geotagging on Bing Maps.
On the anniversary of the japanese earthquake and tsunami Google Maps published new satellite imagery of the affected areas. The GeoEye high-resolution imagery covers the Northeastern coast from Hachinohe in Aomori Prefecture down to Hitachi City in Ibaraki Prefecture. The imagery was taken in February and March 2012.
The top award at the Global Mobile Awards, presented in Barcelona yesterday, went to three Japanese operators for their "spirit of collaboration, technological ingenuity and human determination in the face of a
Japan: Norihiro Sakamoto proposed a plan to make better use of existing satellites so that they could make quicker tsunami forecasts. This would involve using a quasi-zenith satellite system, whereby a satellite is always located near Japan's zenith, so that there is a continuous link with offshore tsunami observation devices.
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.