Exploding lava bubble. A loud detonation and a strong shock wave, that felt like a punch into the st...

Bright explosion in the evening. (Photo: Tom Pfeiffer)

Sulphur and colorful oxides on the inner crater walls (Photo: Tom Pfeiffer)

Rob and Adam at the new lava flow (Photo: Tom Pfeiffer)

The eastern pit crater of Bocca Nuova. Another group is visible as tiny dots on the opposite rim. (P...