Fig. 4
From: Practising an explosive eruption in Iceland: outcomes from a European exercise
Overview of the event evolution during the exercise. Most FUTUREVOLC partners participated during normal business hours only (08:00–17:00 UTC). The dashed area corresponds to the working hours during which the FUTUREVOLC community was asked to respond to the exercise. The coloured arrows provide information on the nature of the hazardous events: dark blue is used for magmatic processes, light blue is for hazardous phenomena involving water, red is for hazardous phenomena impacting the atmosphere, e.g. explosions, and green indicates surface processes such as rock-fall