Impact-induced seismic activity on asteroid 433 Eros: A surface modification process

James E. Richardson, H. Jay Melosh, Richard Greenberg

Research output: Contribution to journalArticlepeer-review

119 Scopus citations

Abstract

High-resolution images of the surface of asteroid 433 Eros revealed evidence of downslope movement of a loose regolith layer, as well as the degradation and erasure of small impact craters (less than ∼100 meters in diameter). One hypothesis to explain these observations is seismic reverberation after impact events. We used a combination of seismic and geomorphic modeling to analyze the response of regolith-covered topography, particularly craters, to impact-induced seismic shaking. Applying these results to a stochastic cratering model for the surface of Eros produced good agreement with the observed size-frequency distribution of craters, including the paucity of small craters.

Original languageEnglish (US)
Pages (from-to)1526-1529
Number of pages4
JournalScience
Volume306
Issue number5701
DOIs
StatePublished - Nov 26 2004

ASJC Scopus subject areas

  • General

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