*Graham Hill^1,2, Hugh Bibby³, Jared Peacock⁴, Erin Wallin⁵, Yasuo Ogawa⁶, Luca Caricchi⁷, Harry Keys⁸, Stewart Bennie³, Yann Avram⁹ (1.Institute of Geophysics, Czech Academy of Science, Prague, Czech Republic, 2.Gateway Antarctica, University of Canterbury, Christchurch, New Zealand, 3.GNS Science, Lower Hutt, New Zealand, 4.United States Geological Survey, Menlo Park CA, USA, 5.United States Army Corps of Engineers, Huntsville AL, USA, 6.Volcanic Fluid Research Centre, Tokyo Institute of Technology, Tokyo, Japan, 7.Department of Earth Sciences, University of Geneva, Geneva, Switzerland, 8.Department of Conservation, Turangi, New Zealand, 9.Phoenix Geophysics, Toronto, Canada)