This article reflects on the connections between space, social movements, and urban memory by analyzing the effects of quarantine on the massive Chilean anti-neoliberal movement. It explores two aspects of the quarantine that have unsettled and challenged the spatial dimension of collective action: restrictions on transit through the city and the imposition of hygienic measures on infrastructure and social interactions. The article suggests that these aspects represent a concrete threat to social movements, while at the same time push to strengthen alternative spaces and repertoires of action. It concludes by illustrating the role of urban memories on the potential continuity of the mobilizations and their demands.