Crisis, Tragedy and Recovery network (CTRnet), is a digital library network for providing a range of services relating to different kind of tragic events. Through this digital library, we collect and archive different types of CTR related information such as Web sites, videos, blogs and tweets.  Various collections about school shootings and natural disasters have been developed from collaboration with the Internet Archive.  Please click an image below to visit the collections. (Note for IE users: if the images below are not rendered correctly, please enable 'Compatibility View' under Tools)

We provide services such as visualization, searching and browsing of the data. We hope that these services could help communities and stakeholders as they heal and recover from various tragic events. We also hope that our data is useful for researchers who investigate the various aspects of disasters.

A word cloud can be effective in visualizing frequent words in textual datasets.   The captured images of two word clouds, about Japan earthquake and Libya revolution, are presented below.   If you click the image, you will be directed to the corresponding word clouds, which were built using the WordCram library, Processing language and tweets from our archive. They are updated with the tweets posted during the last 10 minutes. 

Click the image to view the topic cloud. It may take a couple of seconds to start.

		Created from the latest tweets about the Japan earthquake and tsunami disaster, which occurred in Mar. 11, 2011
		Created from the latest tweets about the Libya Revolution, especially since Feb. 2011