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The French public national alert system app (SAIP) took more than 2 hours to reach citizens’phones during the 14th of July Nice’s attack. On social medias, the first official communication was posted one hour after the beginning of the event. Expectations around the use of Social Media in Emergency Management are high because social medias have become an essential channel for communication from public institutions to citizens. On the one hand, the use of social medias is growing within public institutions. On the other hand, states face the problem of regulating the activities of GAFAM + (Google, Amazon, Facebook, Apple and Microsoft + Twitter) within their own territories. What does crisis management reveal about the interactions between information flows and territory? The first part of this article shows how geographic information flows have diversified following the evolution of practices on the Internet. The second part analyses how this information is mobilized in the field of territorialized crisis management. The third part explores the issues related to the use of social medias by the actors of territorial management. The Author proposes to organize these issues and their different approaches in an analysis framework: Territory 2.0.