Largest recent impact craters on Mars: Orbital imaging and surface seismic co-investigation

Author:

Posiolova L. V.1ORCID,Lognonné P.2ORCID,Banerdt W. B.3ORCID,Clinton J.4ORCID,Collins G. S.5ORCID,Kawamura T.2ORCID,Ceylan S.6ORCID,Daubar I. J.7ORCID,Fernando B.8ORCID,Froment M.29ORCID,Giardini D.6ORCID,Malin M. C.1ORCID,Miljković K.10ORCID,Stähler S. C.6ORCID,Xu Z.2ORCID,Banks M. E.11ORCID,Beucler É.12ORCID,Cantor B. A.1ORCID,Charalambous C.13ORCID,Dahmen N.6ORCID,Davis P.14,Drilleau M.15ORCID,Dundas C. M.16ORCID,Durán C.6ORCID,Euchner F.6ORCID,Garcia R. F.15ORCID,Golombek M.3ORCID,Horleston A.17ORCID,Keegan C.1ORCID,Khan A.618ORCID,Kim D.619ORCID,Larmat C.9,Lorenz R.20ORCID,Margerin L.21ORCID,Menina S.2ORCID,Panning M.3ORCID,Pardo C.2ORCID,Perrin C.12ORCID,Pike W. T.13ORCID,Plasman M.2ORCID,Rajšić A.10ORCID,Rolland L.22ORCID,Rougier E.9ORCID,Speth G.1ORCID,Spiga A.23ORCID,Stott A.15ORCID,Susko D.1ORCID,Teanby N. A.17ORCID,Valeh A.1,Werynski A.1ORCID,Wójcicka N.5ORCID,Zenhäusern G.6ORCID

Affiliation:

1. Malin Space Science Systems, San Diego, CA, USA.

2. Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France.

3. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.

4. Swiss Seismological Service, ETH Zurich, Zurich, Switzerland.

5. Department of Earth Science and Engineering, Imperial College London, London, UK.

6. Institute of Geophysics, ETH Zurich, Zurich, Switzerland.

7. Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI, USA.

8. Department of Earth Sciences, University of Oxford, Oxford, UK.

9. Earth and Environmental Sciences Division, Los Alamos National Laboratory, Los Alamos, NM, USA.

10. Space Science and Technology Centre, School of Earth and Planetary Sciences, Curtin University, Perth, WA, Australia.

11. NASA Goddard Space Flight Center, Greenbelt, MD, USA.

12. Nantes Université, Université Angers, Le Mans Université, CNRS, UMR 6112, Laboratoire de Planétologie et Géosciences, Nantes, France.

13. Department of Electrical and Electronic Engineering, Imperial College London, London, UK.

14. Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, CA, USA.

15. Institut Supérieur de l’Aéronautique et de l’Espace ISAE-SUPAERO, Toulouse, France.

16. U.S. Geological Survey, Astrogeology Science Center, Flagstaff, AZ, USA.

17. School of Earth Sciences, University of Bristol, Bristol, UK.

18. Physik-Institut, University of Zurich, Zurich, Switzerland.

19. Department of Geology, University of Maryland, College Park, MD, USA.

20. Johns Hopkins Applied Physics Laboratory, Laurel, MD, USA.

21. Institut de Recherche en Astrophysique et Planétologie, Université Toulouse III Paul Sabatier, CNRS, CNES, Toulouse, France.

22. Université Côte d’Azur, Observatoire de la Côte d’Azur, CNRS, IRD, Géoazur, Valbonne, France.

23. Laboratoire de Météorologie Dynamique/IPSL, Sorbonne Université, CNRS, Ecole Normale Supérieure, PSL Research University, Ecole Polytechnique, Paris, France.

Abstract

Two >130-meter-diameter impact craters formed on Mars during the later half of 2021. These are the two largest fresh impact craters discovered by the Mars Reconnaissance Orbiter since operations started 16 years ago. The impacts created two of the largest seismic events (magnitudes greater than 4) recorded by InSight during its 3-year mission. The combination of orbital imagery and seismic ground motion enables the investigation of subsurface and atmospheric energy partitioning of the impact process on a planet with a thin atmosphere and the first direct test of martian deep-interior seismic models with known event distances. The impact at 35°N excavated blocks of water ice, which is the lowest latitude at which ice has been directly observed on Mars.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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