If you want to know the internet is affected by natural disasters, here’s an amazing visualization. It shows all the places where internet service went down after Hurricane Sandy. In the future, disasters don’t just rob you of power and water — they rob you of information, too.
Using a new internet research tool called ZMap, researchers at the University of Michigan created this map based on how many servers were out during Sandy. According to the Washington Post’s Timothy Lee:
From Oct. 29-31 of last year, as Hurricane Sandy was pounding the East Coast of the United States, the researchers conducted Internet-wide scans every two hours. After linking IP addresses to geographic locations, they could observe which areas saw the most severe disruptions. This map shows “locations with more than a 30 percent decrease in the number of listening hosts.”