Focusing on Turkey’s nuclearisation process, which has accelerated over the past decade, this article examines the historical and contemporary relationships that the country’s political decision-makers maintain with risk, the environment and health and ecological disasters. While the transition to nuclear power in the post-Fukushima period is not a dynamic specific to Turkey, it nevertheless operates, in the Turkish case, in a particular geographic, energy and political context. On the one hand, Turkey is a highly seismic country that heavily depends on its neighbours for energy and, on the other, is experiencing a creeping political authoritarianism. This article focuses on the dynamics and specificities of this post-disaster nuclear transition, which will be analysed here as ‘serene nuclearism’, positioned as the polar opposite of ‘reflexive modernisation’, as theorised by Ulrich Beck.