For the first time, scientists have been able to study the deposits of a volcanic island landslide-tsunami immediately after the incident with the benefit of modern acoustic equipment. Dr James Hunt from the National Oceanography Centre (NOC), in partnership with Professor Dave Tappin from the British Geological Survey, have produced the first marine survey results of the December 22nd, 2018 landslide at Anak Krakatau, in Indonesia, that created the deadly 'silent' tsunami that affected Sumatra and Java.