Encyclopedia of Planetary Landforms

2015 Edition
| Editors: Henrik Hargitai, Ákos Kereszturi

Concentric Crater (Moon)

Reference work entry
DOI: https://doi.org/10.1007/978-1-4614-3134-3_64


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...

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© Springer Science+Business Media New York 2015

Authors and Affiliations

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