John is working with volcanic risk scientists from the Institute of Geological & Nuclear Sciences (GNS) New Zealand and Nanyang Technological University (NTU) Singapore to understand the vulnerability of Japan's electricity infrastructure to volcanic ashfall hazards. Led by Dr Josh Hayes (GNS) and Assistant Professor Susanna Jenkins (NTU), the study looks to identify volcanoes in Japan that are particularly likely to impact electricity systems, and the components of these networks that have a high susceptibility to ash-induced disruption.