- Structural and rheological constraints on magma migration, accumulation and eruption through the lithosphere, (Task Force II, 2015 – 2019).
- Volcanoes and society: environment, health and public outreach, Chairperson: A. Tibaldi (Italy), (Task Force II, 2010 – 2014).
- New tectonic causes of volcano failure and possible premonitory signals, Chairperson: A. Tibaldi (Italy), (Task Force II, 2005 – 2009).