The central city was closed for a week after the 7.1 magnitude earthquake on 4 September 2010; some buildings were damaged, including parapets collapsing. The central city experienced peak ground acceleration (i.e. earthquake intensity) of between 15% and 20% of gravity. Ongoing aftershocks and cracked building façades dented confidence in the central city. Retailers in the City Mall retailers had put an effort into strongly promoting the traditional Boxing Day sales in 2010, and there was "brisk trade" until an aftershock at 10.30 am. Although only a 4.9 magnitude earthquake, its epicentre was directly beneath the central city and the resulting peak ground acceleration ranged from 22% of gravity at ChristChurch Cathedral and 48% at Christchurch Botanic Gardens. The Last Train to India restaurant at 94 Cashel Street was a graphic example of the damage caused. The wall of the adjacent former Zetland Hotel collapsed and crashed through the roof; anybody standing in the restaurant's bar area would likely have been killed, but it was still closed that morning.