Fig. 1
From: Evidence-Calibrated Numerical Model of December 22, 2018, Anak Krakatau Flank Collapse and Tsunami

Location maps of Anak Krakatau volcano: a overview of the Anak Krakatau location between Sumatra and Java islands in Indonesia; b location of Anak Krakatau volcano within the Sunda Strait where the tsunami was recorded by coastal tide gauges (black triangles) and surveyed at Sumatra and Java coasts (red and blue dots); c digital elevation model of the 1883 Caldera, including Anak Krakatau and surrounding islands