In April and since June, a red glow has been visible on top of Nyamulagira, the most western volcano of the Virunga Volcanic Province, in the western branch of the East African Rift. Helicopter flights and field observations quickly confirmed the presence of lava fountains that might evolve into what could become a new lava lake inside a 400‐ by 600‐meter‐wide pit crater, in the northeast sector of the central caldera (see Figure 1).