Category
page 1Volcanic craters

caldera
thumb|right|Mount Mazama's eruption timeline, an example of caldera formation
volcanic crater
circular depression in the ground caused by volcanic activity
maar
thumb|The ten-day phreatomagmatic eruption that formed the [[Ukinrek maars]]
thumb|The Devil Mountain Lakes on the Seward Peninsula in western Alaska – the largest maar-based lakes in the world

Halemaumau Crater
thumb|Halema'uma'u after the 2018 collapse events. The floor of the larger Kīlauea Caldera can be seen at left.
thumb|Aerial photo of Halemaʻumaʻu in 2009, showing a white eruption column|plume being emitted by an active [[lava lake.]]
thumb|In March 2013, the glow from the lava lake at the bottom was clearly visible after dark.
thumb|Halemaʻumaʻu Crater Lake in October 2019. The yellow water is the result of dissolved minerals and sulfur.
2008 Map of Kīlauea Caldera with Halemaʻumaʻu lower left.|thumb
Mount Kamojang
mountain in West Java, Indonesia
Kawah Putih
tourist spot in Indonesia
Mount Fraser
mountain in Hume, Victoria, Australia
Ngurdoto Crater
volcanic crater in Tanzania, Africa
pit crater
depression formed by a sinking or collapse of the surface lying above a void or empty chamber
Karaha Crater
mountain in West Java, Indonesia
Olmoti Crater
volcanic caldera in Arusha Region of Tanzania
Formica Leo
small volcanic crater on the french island Réunion
The Ash Pit
mountain in Canada