This paper reviews the mechanical damage and the impact on the processes resulting from the March 2 1987 earthquake. Despite the potential hazards present in a pulp and paper mill as a result of the operating processes, there were no process related failures although there was significant damage to structures and some mechanical plant. Mechanical damage can be seen to be relatively small being about one third of the total material damage and representing less than one per cent of the replacement value of the mill complex, highlighting the fact that such mechanical plants are not particularly high risks.