Stress cracks in the skin of a large fallen lava bomb near Mount Lokon, an active stratovolcano, near Tomohon city, Gunung Lokon, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia

Sulphur deposits in a piece of lava rock on the slopes of Mount Lokon volcano near Tomohon city, Gunung Lokon, Tomohon, North Sulawesi, Indonesia, Southeast Asia, Asia

Lava bombs erupt from one of many vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Lava bombs erupt from multiple vents on this volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Lava bombs erupt from multiple vents on volcano, active for at least 2000 years, Stromboli, Aeolian Islands, UNESCO World Heritage Site, Sicily, Italy, Mediterranean, Europe

Canary Island amphora (Rumex lunaria) and lava bomb in front of the Caldera Colorada, Parque Natural de Los Volcanes, near Masdache, Lanzarote, Canary Islands, Spain, Europe

Lava bomb in front of Caldera Colorada, Parque Natural de Los Volcanes, near Masdache, Lanzarote, Canary Islands, Spain, Europe

Volcanic bomb in lava field, in front of a red volcano, Montana Colorada, Lanzarote, Canary Islands, Spain