Likelihood of tectonic activity affecting the geological stability of a repository in japan: development of NUMO's ITM methodology

We define the structure of a methodology being developed by NUMO to assess the likelihood that volcanic or rock deformation processes could significantly affect sites that may emerge from the Japanese volunteer siting process. Simple criteria are used to exclude clearly unsuitable areas at the outset: the present methodology is developing probabilistic techniques to look at likelihood in non-excluded areas. These are based on scientific models for the occurrence of volcanism and a range of proxy indicators for potential future rock deformation. (authors)