An earthquake, rated at IX (Violent) on the Mercalli intensity scale, struck northern Italy and Germany on 3 January 1117. The epicentre of the first shock was near Verona, the city which suffered the most damage. The outer wall of the Verona Arena partially collapsed, and the standing portion was damaged in a later earthquake of 1183. After the first shock of 3 January, seismic activity persisted for months, striking on 12 January 4 June, 1 July 1 October, and 30 December.