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Seismic tomography of the Moon

  • Articles/Geophysics
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Chinese Science Bulletin

Abstract

We attempted to determine the first three-dimensional P and S wave velocity and Poisson’s ratio structures of the lunar crust and mantle down to 1000 km depth under the near-side of the Moon by applying seismic tomography to the moonquake arrival-time data recorded by the Apollo seismic network operated during 1969 to 1977. Our results show that significant lateral heterogeneities may exist in the lunar interior. Because there is no plate tectonics in the Moon, the lateral heterogeneities may be produced at the early stage of the Moon formation and evolution, and they have been preserved till today. There seems to be a correlation between the distribution of deep moonquakes and lateral velocity variations in the lunar lower mantle, suggesting that the occurrence of deep moonquakes may be affected by the lunar structural heterogeneity in addition to the tidal stresses. Although this is an experimental work and the result is still preliminary, it indicates that tomographic imaging of the lunar interior is feasible.

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Authors and Affiliations

  1. Department of Geophysics, Tohoku University, Sendai, 980-8578, Japan

    DaPeng Zhao & Lucy Liu

  2. Institute of Crustal Dynamics, China Earthquake Administration, Beijing, 100085, China

    JianShe Lei

Authors
  1. DaPeng Zhao
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  2. JianShe Lei
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  3. Lucy Liu
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Corresponding author

Correspondence to DaPeng Zhao.

Additional information

Supported by Japan Society for the Promotion of Science (JSPS) to D. Zhao (Grant Nos. B-11440134 and A-17204037)

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Cite this article

Zhao, D., Lei, J. & Liu, L. Seismic tomography of the Moon. Chin. Sci. Bull. 53, 3897–3907 (2008). https://doi.org/10.1007/s11434-008-0484-1

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  • DOI: https://doi.org/10.1007/s11434-008-0484-1

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