By Costanza Bonadonna¹, Paul A Jarvis¹, Lucia Dominguez¹, Corine Frischknecht¹, Pablo Forte², Donaldo Bran³, Rigoberto Aguilar⁴, Frances Beckett⁵, Manuela Elissondo⁶, Jack Gillies⁷, ulrich kueppers⁸, Jonathan Merrison⁹, Nick Varley¹⁰, Kristi L Wallace¹¹

1. University of Geneva, Switzerland 2. University of Buenos Aires, Argentina 3. INTA, Argentina 4. Volcanological Observatory of INGEMMET, Peru 5. UK Metoffice, UK 6. SEGEMAR, Argentina 7. Desert Research Institute, US 8. Ludwig-Maximilians-Universitaet Munich (LMU), Germany 9. Aarhus University, DK 10. Universidad de Colima, Mexico 11. U.S. Geological Survey/Alaska Volcano Observatory