Fig. 2
From: Lateral migration of explosive hazards during maar eruptions constrained from crater shapes
Schematic diagram of the relations between explosion footprints and final shape for cases where the crater radius of an initial footprint (R1) in a construct of two or more overlapping circular footprints is greater than or equal to the radius of next footprint (R2). Explosion locations are indicated in yellow, spacing as a black line, and grey footprints expressed in different shades of grey to highlight overlap