The International Volcanic Health Hazard Network (IVHHN) is an umbrella organization for all research and information on the health hazards and impacts of volcanic eruptions. IVHHN represents academics and practitioners working across diverse scientific disciplines such as volcanology, epidemiology, environmental science, toxicology, public health and exposure science with a common aim of trying to determine the health impacts of volcanic emissions and to protect exposed communities.

IVHHN is directed by Prof Claire Horwell (Durham University, UK), Dr Carol Stewart (Massey University, NZ), Dr David Damby (USGS, Menlo Park, USA) and Tamar Elias (USGS Hawaiian Volcano Observatory, USA). The Japanese version of the IVHHN website was created and is maintained by Dr Yasuhiro Ishimine (Mt. Fuji Research Institute, Japan).