Two Seismic Events from InSight Confirmed as New Impacts on Mars

Ingrid J. Daubar; Benjamin A. Fernando; Raphaël F. Garcia; Peter M. Grindrod; Géraldine Zenhäusern; Natalia Wójcicka; Nicholas A. Teanby; Simon C. Stähler; Liliya Posiolova; Anna C. Horleston; Gareth S. Collins; Constantinos Charalambous; John Clinton; Maria E. Banks; Marouchka Froment; Philippe Lognonné; Mark Panning; W. Bruce Banerdt

doi:10.3847/PSJ/ace9b4

The Planetary Science Journal (Jan 2023)

Two Seismic Events from InSight Confirmed as New Impacts on Mars

Ingrid J. Daubar,
Benjamin A. Fernando,
Raphaël F. Garcia,
Peter M. Grindrod,
Géraldine Zenhäusern,
Natalia Wójcicka,
Nicholas A. Teanby,
Simon C. Stähler,
Liliya Posiolova,
Anna C. Horleston,
Gareth S. Collins,
Constantinos Charalambous,
John Clinton,
Maria E. Banks,
Marouchka Froment,
Philippe Lognonné,
Mark Panning,
W. Bruce Banerdt

Affiliations

Ingrid J. Daubar: ORCiD; Department of Earth, Environmental, and Planetary Sciences, Brown University , Providence, RI, USA
Benjamin A. Fernando: ORCiD; Department of Physics, University of Oxford , Oxford, UK
Raphaël F. Garcia: ORCiD; Institut Supérieur de l’Aéronautique et de l’Espace SUPAERO , 10 Avenue Edouard Belin, F-31400 Toulouse, France
Peter M. Grindrod: ORCiD; Natural History Museum , London, UK
Géraldine Zenhäusern: ORCiD; Institute of Geophysics , ETH Zürich, Zurich, Switzerland
Natalia Wójcicka: ORCiD; Department of Earth Science and Engineering, Imperial College , London, UK
Nicholas A. Teanby: ORCiD; School of Earth Sciences, University of Bristol , Bristol, UK
Simon C. Stähler: ORCiD; Institute of Geophysics , ETH Zürich, Sonneggstrasse 5, 8092 Zürich, Switzerland
Liliya Posiolova: Malin Space Science Systems , San Diego, CA, USA
Anna C. Horleston: ORCiD; School of Earth Sciences, University of Bristol , Bristol, UK
Gareth S. Collins: ORCiD; Department of Earth Science and Engineering, Imperial College , London, UK
Constantinos Charalambous: ORCiD; Department of Electrical and Electronic Engineering, Imperial College , London, UK
John Clinton: ORCiD; Swiss Seismological Service (SED) , ETH Zürich, Sonneggstr. 5, 8092 Zurich, Switzerland
Maria E. Banks: ORCiD; NASA Goddard Space Flight Center , Greenbelt, MD, USA
Marouchka Froment: ORCiD; Université Paris-Cité , Institut de Physique du Globe de Paris, CNRS, F-75005 Paris, France; Earth and Environmental Sciences Division, Los Alamos National Laboratory , Los Alamos, NM, USA
Philippe Lognonné: ORCiD; Université Paris-Cité , Institut de Physique du Globe de Paris, CNRS, F-75005 Paris, France
Mark Panning: ORCiD; Jet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109, USA
W. Bruce Banerdt: ORCiD; Jet Propulsion Laboratory, California Institute of Technology , Pasadena, CA 91109, USA

DOI: https://doi.org/10.3847/PSJ/ace9b4
Journal volume & issue: Vol. 4, no. 9
p. 175

Abstract

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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 to within a factor of 3, and have formation time constraints consistent with the seismic event dates. They are both of the very high frequency family of seismic events and are present with chirps (dispersed infrasound/acoustic waves). 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 and 300 km distance.

Published in The Planetary Science Journal

ISSN: 2632-3338 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Science: Astronomy
Website: https://iopscience.iop.org/journal/2632-3338

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