On 22 February 2011, Sumner was hit by the Christchurch earthquake, which destroyed or made uninhabitable a large number of the local houses and commercial buildings. On 13 June the same year, Sumner was hit by another earthquake of almost the same magnitude as the February event. These two earthquakes caused many of Sumner's iconic cliffs to collapse, and many areas to be cordoned off with both traditional fences and shipping containers.