kaldera

Kaldera is a term used in several languages and contexts, most often as a geographical name and as a variant spelling of the geological term caldera. In geology, a kaldera refers to a large volcanic crater formed by the collapse of land after magma is exhausted from a chamber erupting or leaking. The resulting depression typically ranges from a few to tens of kilometers in diameter and may host lakes, geothermal features, or small volcanic vents. Calderas are associated with some of the most powerful volcanic events in Earth's history and can influence regional climate when large eruptions eject substantial ash and aerosols into the atmosphere.

As a toponym and proper name, Kaldera appears in various localities and institutions in different countries, usually drawing on the volcanic or dramatic landscape suggested by the term. In such uses, the name may designate a village, a protected area, a district, or a business entity. In culture and commerce, Kaldera is also used as a brand, art project, or fictional setting due to its evocative imagery.

The term Kaldera is closely related to caldera, with spelling and usage varying by language. See also caldera.