We are studying crisis hashtags to better understand the variety of tags used during and in the immediate aftermath of major crises. Popular hashtags used during disasters often overshadow more hyperlocal ones making these less discoverable.
Other challenges include the: "proliferation of hashtags that do not cross-pollinate and a lack of usability in the tools necessary for managing massive amounts of streaming information for participants who needed it". To address these challenges and analyze crisis hashtags, we 've launched this dashboard.
Our first case study is Hurricane Sandy. We've uploaded about 5 million tweets posted between October 27th to November 7th, 2012 to the dashboard.
Our second case study is India flood. We've uploaded about 3 hundred thousand tweets posted between June 18th to July 18th, 2013 to the dashboard.
We hope the tool will provide insights during future disasters.