What kind of accidents should be included in mass accident submodule? There are some risks covering specific type of accident, such as death in car accident. Basing on the document "Catastrophe Task Force Report on Standardised Scenarios for the Catastrophe Risk Module in the Standard Formula", where this risk is named "Arena Disaster" the goal of this risk is to include possible scenario where many people in one place are affected. Including specific type of accident would result in overestimated SCR, as cummulation of such incidents are much less probable than assumed in SCR 0,5%.