Two seismic events from InSight confirmed as new impacts on Mars

Ingrid Daubar, Benjamin Fernando, Peter Grindrod, Anna C Horleston, Nicholas A Teanby, Géraldine Zenhäusern

Research output: Contribution to journalArticle (Academic Journal)peer-review

1 Citation (Scopus)


We report confirmed impact sources for two seismic events on Mars detected by the NASA InSight mission. These events have been positively associated with fresh impact craters identified from orbital images, which match predicted locations and sizes, and have formation time constraints consistent with the seismic event dates. They are both of the Very High Frequency family of seismic events and display impact-acoustic chirps. This brings the total number of confirmed martian impact-related seismic events to eight thus far. All seismic events with chirp signals have now been confirmed as having been caused by impact cratering events. This includes all seismic activity within 100 km of the lander, and two out of the four events with source locations between 100-300 km distance.
Original languageEnglish
Article number175
JournalPlanetary Science Journal
Issue number9
Publication statusPublished - 25 Sept 2023

Bibliographical note

Funding Information:
We acknowledge NASA, CNES, their partner agencies and Institutions (UKSA, SSO, DLR, JPL, IPGP-CNRS, ETHZ, IC, MPS-MPG), and the flight operations team at JPL, SISMOC, MSDS, IRIS-DMC and PDS for providing SEED SEIS data. Thanks to the HiRISE, CaSSIS, and CTX operations teams who acquired the images used to discover and analyze these new craters.

Funding Information:
I.J.D. was funded by NASA InSight PSP grant 80NSSC20K0971. P.M.G. was funded by the UK Space Agency grants ST/R002355/1 and ST/V002678/1. G.S.C. and N.W. were supported by UK Space Agency grants ST/S001514/1, ST/T002026/1, and ST/Y000102/1. N.A.T. and A.C.H. were supported by UK Space Agency grant ST/W002523/1. Research by M.P.P. and W.B.B. was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration (80NM0018D0004). C.C. was supported by UK Space Agency grant ST/V00638X/1. R.F.G., M.F. and P.L. acknowledge the French Space Agency CNES and the ANR MAGIS (ANR-19-CE31-0008-08). M.F. and P.L. acknowledge additional support from IDEX Paris Cité (ANR-18-IDEX-0001). J.C., S.C.S, and G.Z. recognize support from the ETH+ funding scheme (ETH+02 19-1: “Planet Mars”)

Funding Information:
CaSSIS is a project of the University of Bern and funded through the Swiss Space Office via ESA’s PRODEX program. The instrument hardware development was also supported by the Italian Space Agency (ASI) via the ASI-INAF agreement No. 2020-17-HH.0, the INAF/Astronomical Observatory of Padova, and the Space Research Center (CBK) in Warsaw. Support from SGF (Budapest), the University of Arizona (Lunar and Planetary Lab.) and NASA are also gratefully acknowledged. Operations support from Charlotte Marriner, funded by the UK Space Agency (grants ST/R003025/1, ST/V002295/1) is also recognized.

Publisher Copyright:
© 2023. The Author(s). Published by the American Astronomical Society.


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