Fig. 1From: Tonga volcanic eruption and tsunami, January 2022: globally the most significant opportunity to observe an explosive and tsunamigenic submarine eruption since AD 1883 KrakatauSource credit for bathymetry map: GEBCO (2014)Main map: location of the Hunga Tonga–Hunga Haʻapai (HTHH) volcano in southern Tonga. Lower inset image: the Tonga-Kermadec submarine trench (subduction zone) in the southwest Pacific, showing the position of HTHH volcano on the Tofua Ridge to the immediate west of the trench.Back to article page