Wei Lin, University of Chinese Academy of Sciences, Institute of Porous Flow and Fluid Mechanics, Beijing, China, Michael Manga, University of California Berkeley, Berkeley, CA, United States, Xiaojing Fu, Massachusetts Institute of Technology, Department of Civil and Environmental Engineering, Somerville, MA, United States, Benjamin James Andrews, Smithsonian Institution, Global Volcanism Program, Washington, DC, United States and Kenneth S Befus, Baylor University, Waco, TX, United States