Ionian Nomenclature

The links below take you to a list of names of features on the surface of Io.  Each entry has info on its name, which may also link you to additional info on the volcano, its location, its size, when it was added to the list, and info on the names origin with a link for more info on the names origin provided by Encyclopedia Mythica. Finally, clicking on the wav link allows you hear a dificult to pronounce name.

Updated for the 2000 IAU General Assembly.

Catena Chain of craters
Eruptive Center Active volcanic centers on Io
Fluctus Flow terrain
Mensa A flat-topped prominence with cliff-like edges
Mons Mountain
Patera An irregular crater, or a complex one with scalloped edges
Planum Plateau or high plain
Regio A large area marked by reflectivity or color distinctions from adjacent areas
Tholus Small domical mountain or hill

Last Updated January 27, 2001