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Journal Articles Physics of the Earth and Planetary Interiors Year : 2022

The marsquake catalogue from InSight, sols 0-1011

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Savas Ceylan
  • Function : Author
John F. Clinton
  • Function : Author
Domenico Giardini
  • Function : Author
Simon C. Stähler
  • Function : Author
Anna Horleston
  • Function : Author
Taichi Kawamura
Maren Böse
  • Function : Author
Constantinos Charalambous
  • Function : Author
Nikolaj L. Dahmen
  • Function : Author
Martin van Driel
  • Function : Author
Cecilia Durán
  • Function : Author
Fabian Euchner
  • Function : Author
Amir Khan
  • Function : Author
Doyeon Kim
  • Function : Author
John-Robert Scholz
  • Function : Author
Géraldine Zenhäusern
  • Function : Author
Sharon Kedar
  • Function : Author
Martin Knapmeyer
  • Function : Author
Mark P. Panning
  • Function : Author
William T. Pike
  • Function : Author
William B. Banerdt
  • Function : Author

Abstract

The InSight mission (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) has been collecting high-quality seismic data from Mars since February 2019, shortly after its landing. The Marsquake Service (MQS) is the team responsible for the prompt review of all seismic data recorded by the InSight's seismometer (SEIS), marsquake event detection, and curating seismicity catalogues. Until sol 1011 (end of September 2021), MQS have identified 951 marsquakes that we interpret to occur at regional and teleseismic distances, and 1062 very short duration events that are most likely generated by local thermal stresses nearby the SEIS package. Here, we summarize the seismic data collected until sol 1011, version 9 of the InSight seismicity catalogue. We focus on the significant seismicity that occurred after sol 478, the end date of version 3, the last catalogue described in a dedicated paper. In this new period, almost a full Martian year of new data has been collected, allowing us to observe seasonal variations in seismicity that are largely driven by strong changes in atmospheric noise that couples into the seismic signal. Further, the largest, closest and most distant events have been identified, and the number of fully located events has increased from 3 to 7. In addition to the new seismicity, we document improvements in the catalogue that include the adoption of InSight-calibrated Martian models and magnitude scales, the inclusion of additional seismic body-wave phases, and first focal mechanism solutions for three of the regional marsquakes at distances ∼30°.
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Dates and versions

insu-03869093 , version 1 (24-11-2022)

Licence

Attribution - CC BY 4.0

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Savas Ceylan, John F. Clinton, Domenico Giardini, Simon C. Stähler, Anna Horleston, et al.. The marsquake catalogue from InSight, sols 0-1011. Physics of the Earth and Planetary Interiors, 2022, 333, ⟨10.1016/j.pepi.2022.106943⟩. ⟨insu-03869093⟩
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