What we do

The commission facilitates the selection of Cities on Volcanoes Conference venues and provides advocacy and advice where needed to the planning and running of these conferences. To see more about applying to be the next venue please see our hosting page.

Graham Leonard at CoV9 in Chile

Graham Leonard at CoV9 in Chile

The commission also supports the activities of the Volcanic Ash Impacts Working Group, including its five main themes:

Theme 1: More Effective Ash Fall Warning Messages
Theme 2: Protocols for Ash Fall Data Collection and Analysis
Theme 3: Checklist of Topics and Indicators to Collect Impact Data Following Eruptions
Theme 4: Ash Impacts Loss-damage Functions for Risk Calculations
Theme 5: Improve International Ash Fall Impact Data and Image Repository

The commission has developed a relationship with the Springer Journal of Applied Volcanology and maintains a scope that is complementary to the Bulletin of Volcanology.

Commission Members

Leader: Carolyn DriedgerCarolyn’s career began with research on glaciers, principally those gracing our Cascade Range volcanoes, and later on glacier-related floods and debris flows. Witnessing the May 18, 1980 eruption of Mount St. Helens and taking part in the response set the course for several fascinating scientific projects. It also provided a front-row seat for observation and reflection regarding the role of science in society. As CVO’s Outreach Coordinator, I work in partnership with public officials, emergency planners, media, park interpreters, and educators to advance the cause of volcano preparedness.


Thomas WilsonTom is an Professor of Disaster Risk and Resilience in the School of Earth and Environment, University of Canterbury. Tom undertakes research on assessing and mitigating the impact of natural hazards on society, focusing on volcanic hazard impacts to critical infrastructure and primary industries.

Graham Leonard – Graham is a Senior Scientist within the Volcanology team at GNS. His particular research interests are in Taupo Volcanic Zone volcanic mapping; New Zealand volcanic geology, stratigraphy and geochronology; developing effective response to warning systems, especially for volcanic, tsunami & landslide/debris-flow processes; and quantifying/characterising & mitigating the impacts of natural hazard events.

Natalia Deligne – Natalia is a Research Geologist at the U.S. Geological Survey – Hawaiian Volcano Observatory, USA. Her research focuses volcanic hazards and the consequences of volcanic eruptions. She has worked closely with emergency and infrastructure managers prior to volcanic eruptions, responded to eruptions in New Zealand and Hawai’i, and provided support to eruptions in Vanuatu. Natalia is fluent in English and French, and proficient in Spanish.


Gustavo Villarosa – Gustavo is a Senior Researcher at the Scientific and Technological Research Council (CONICET) and Associate Professor at the Geology and Petroleum Department of Universidad del Comahue. He is vice-Director of IPATEC Institute (CONICET-UNCo) in Bariloche, Argentina. Gustavo is a tephrochronologist and limnogeologist dedicated to the reconstruction of postglacial explosive volcanic eruptions from the Andean Southern Volcanic Zone and their impacts. He is also working on tsunamigenic processes research in big Patagonian lakes. He acted as scientific advisor in several Civil Protection volcanic crises committees in Argentina during Chaitén (2008), Cordón Caulle (2011), Copahue (2012) and Calbuco (2015) eruptions.

Special project coordinator: Carina FearnleyCarina is an Associate Professor in Science and Technology Studies at University College London in the Department of Science and Technology Studies. Her research draws on relevant expertise in the social sciences to enable concepts of scientific uncertainty, risk, and complexity to be re-framed and communicated within the context of Disaster Risk Reduction and provide practical insights into how, early warning systems specifically, can be made more effective. Carina is also interested in the trans-disciplinary potential of science and art collaborations around environmental hazards, and the role of geopolitics in the production of risk.


Secretary: Danielle Charlton – Danielle is a Hazard and Risk Scientist at GNS Science. She is currently researching and working on applied projects aiming to improve natural hazard and risk communication approaches in New Zealand. The focus of Danielle’s PhD was volcanic hazard mapping at one of Europe’s most dangerous caldera volcanoes, Campi Flegrei in Southern Italy. Previous to her PhD (University College London) and volcanology Masters (University of Bristol). Danielle also worked for local government in the UK in flood risk and GIS and enjoys exploring new and visual ways of communicating hazard and risk science.


Please join us via our membership registration on VHub here