Concentric Crater (Moon)

  • David TrangEmail author
Living reference work entry


An impact crater with one or more concentric ridges on the crater wall and/or crater floor with a central depression (Trang et al. 2011).



Generally, concentric craters tend to have a central depression within the concentric ridge. A break in slope or a depression may exist between the crater wall and the concentric ridge.


There are 114 concentric craters with diameters between 2 and 28 km (median, ~8 km) (Trang et al. 2011, in prep.). Concentric craters have shallower depths than fresh craters of the same diameter.


End-members of lunar concentric craters (Trang et al. 2011, in prep.):
  1. (1)

    A crater with a continuous smooth concentric ridge, displaying a V-shaped, circular valley between the crater wall and the concentric ridge. Example: Hesiodus A (Fig. 1).

  2. (2)

    A crater with a concentric ridge partitioned into smaller hills or domes. The concentric ridge displays a V-shaped, circular valley between the...


Impact Crater Lava Dome Crater Wall Crater Diameter Crater Floor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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© Springer Science Business Media New York (outside the USA) 2014

Authors and Affiliations

  1. 1.Hawai’i Institute of Geophysics and PlanetologyUniversity of Hawai’i at MānoaHonoluluUSA