Seasonal seismic activity on Mars

M. Knapmeyer; S. C. Stähler; I. Daubar; F. Forget; A. Spiga; T. Pierron; M. van Driel; D. Banfield; E. Hauber; M. Grott; N. Müller; C. Perrin; A. Jacob; A. Lucas; B. Knapmeyer-Endrun; C. Newman; M. P. Panning; R. C. Weber; F. J. Calef; M. Böse; S. Ceylan; C. Charalambous; J. Clinton; N. Dahmen; D. Giardini; A. Horleston; T. Kawamura; A. Khan; G. Mainsant; M. Plasman; M. Lemmon; R. Lorenz; W. T. Pike; J. R. Scholz; P. Lognonné; B. Banerdt

doi:10.1016/j.epsl.2021.117171

Seasonal seismic activity on Mars

M. Knapmeyer
, S. C. Stähler
, I. Daubar
, F. Forget
, A. Spiga
, T. Pierron
, M. van Driel
, D. Banfield
, E. Hauber
, M. Grott
, N. Müller
, C. Perrin
, A. Jacob
, A. Lucas
, B. Knapmeyer-Endrun
, C. Newman
, M. P. Panning
, R. C. Weber
, F. J. Calef
, M. Böse

S. Ceylan, C. Charalambous, J. Clinton, N. Dahmen, D. Giardini, A. Horleston, T. Kawamura, A. Khan, G. Mainsant, M. Plasman, M. Lemmon, R. Lorenz, W. T. Pike, J. R. Scholz, P. Lognonné, B. Banerdt

DLR
ETH Zurich
Women and Infants Hospital of Rhode Island-Warren Alpert Medical School of Brown University
Sorbonne Université
Cornell Center for Astrophysics and Planetary Science
Université de Nantes
Laboratoire de Probabilités et Modèles Aléatoires
Germany; University of Cologne
Aeolis Research
Science Division
NASA Marshall Space Flight Center
Imperial College London
University of Bristol
Université de Toulouse
Space Science Institute
Johns Hopkins University Applied Physics Laboratory
Max-Planck-Institut für Sonnensystemforschung

Research output: Contribution to journal › Article › peer-review

Abstract

The rate of occurrence of High Frequency (HF) marsquakes, as recorded by InSight at Homestead Hollow, Elysium Planitia, increased after about L_S=33^∘, and ceased almost completely by L_S=187^∘, following an apparently seasonal variation with a peak rate near aphelion. We define seismic rate models based on the declination of the Sun, annual solar tides, and the annual CO₂ cycle as measured by atmospheric pressure. Evaluation of Akaike weights and evidence ratios shows that the declination of the Sun is the most likely, and the CO₂ cycle the least likely driver of this seismic activity, although the discrimination is weak, and the occurrence of a few events in August 2020 is in favor for a triggering by CO₂ ice load. We also show that no periodicity related to Phobos' orbit is present in the HF event sequence. Event rate forecasts are presented to allow further discrimination of candidate mechanisms from future observations.

Original language	English
Article number	117171
Journal	Earth and Planetary Science Letters
Volume	576
DOIs	https://doi.org/10.1016/j.epsl.2021.117171
Publication status	Published - 15 Dec 2021

Keywords

Elysium Planitia
InSight
Mars
Phobos
seasonal seismic activity

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10.1016/j.epsl.2021.117171

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Knapmeyer, M., Stähler, S. C., Daubar, I., Forget, F., Spiga, A., Pierron, T., van Driel, M., Banfield, D., Hauber, E., Grott, M., Müller, N., Perrin, C., Jacob, A., Lucas, A., Knapmeyer-Endrun, B., Newman, C., Panning, M. P., Weber, R. C., Calef, F. J., ... Banerdt, B. (2021). Seasonal seismic activity on Mars. Earth and Planetary Science Letters, 576, Article 117171. https://doi.org/10.1016/j.epsl.2021.117171

@article{322a4861da074d12af25a8960a647868,

title = "Seasonal seismic activity on Mars",

abstract = "The rate of occurrence of High Frequency (HF) marsquakes, as recorded by InSight at Homestead Hollow, Elysium Planitia, increased after about LS=33∘, and ceased almost completely by LS=187∘, following an apparently seasonal variation with a peak rate near aphelion. We define seismic rate models based on the declination of the Sun, annual solar tides, and the annual CO2 cycle as measured by atmospheric pressure. Evaluation of Akaike weights and evidence ratios shows that the declination of the Sun is the most likely, and the CO2 cycle the least likely driver of this seismic activity, although the discrimination is weak, and the occurrence of a few events in August 2020 is in favor for a triggering by CO2 ice load. We also show that no periodicity related to Phobos' orbit is present in the HF event sequence. Event rate forecasts are presented to allow further discrimination of candidate mechanisms from future observations.",

keywords = "Elysium Planitia, InSight, Mars, Phobos, seasonal seismic activity",

author = "M. Knapmeyer and St{\"a}hler, \{S. C.\} and I. Daubar and F. Forget and A. Spiga and T. Pierron and \{van Driel\}, M. and D. Banfield and E. Hauber and M. Grott and N. M{\"u}ller and C. Perrin and A. Jacob and A. Lucas and B. Knapmeyer-Endrun and C. Newman and Panning, \{M. P.\} and Weber, \{R. C.\} and Calef, \{F. J.\} and M. B{\"o}se and S. Ceylan and C. Charalambous and J. Clinton and N. Dahmen and D. Giardini and A. Horleston and T. Kawamura and A. Khan and G. Mainsant and M. Plasman and M. Lemmon and R. Lorenz and Pike, \{W. T.\} and Scholz, \{J. R.\} and P. Lognonn{\'e} and B. Banerdt",

note = "Publisher Copyright: {\textcopyright} 2021 The Author(s)",

year = "2021",

month = dec,

day = "15",

doi = "10.1016/j.epsl.2021.117171",

language = "English",

volume = "576",

journal = "Earth and Planetary Science Letters",

issn = "0012-821X",

publisher = "Elsevier B.V.",

}

Knapmeyer, M, Stähler, SC, Daubar, I, Forget, F, Spiga, A, Pierron, T, van Driel, M, Banfield, D, Hauber, E, Grott, M, Müller, N, Perrin, C, Jacob, A, Lucas, A, Knapmeyer-Endrun, B, Newman, C, Panning, MP, Weber, RC, Calef, FJ, Böse, M, Ceylan, S, Charalambous, C, Clinton, J, Dahmen, N, Giardini, D, Horleston, A, Kawamura, T, Khan, A, Mainsant, G, Plasman, M, Lemmon, M, Lorenz, R, Pike, WT, Scholz, JR, Lognonné, P & Banerdt, B 2021, 'Seasonal seismic activity on Mars', Earth and Planetary Science Letters, vol. 576, 117171. https://doi.org/10.1016/j.epsl.2021.117171

TY - JOUR

T1 - Seasonal seismic activity on Mars

AU - Knapmeyer, M.

AU - Stähler, S. C.

AU - Daubar, I.

AU - Forget, F.

AU - Spiga, A.

AU - Pierron, T.

AU - van Driel, M.

AU - Banfield, D.

AU - Hauber, E.

AU - Grott, M.

AU - Müller, N.

AU - Perrin, C.

AU - Jacob, A.

AU - Lucas, A.

AU - Knapmeyer-Endrun, B.

AU - Newman, C.

AU - Panning, M. P.

AU - Weber, R. C.

AU - Calef, F. J.

AU - Böse, M.

AU - Ceylan, S.

AU - Charalambous, C.

AU - Clinton, J.

AU - Dahmen, N.

AU - Giardini, D.

AU - Horleston, A.

AU - Kawamura, T.

AU - Khan, A.

AU - Mainsant, G.

AU - Plasman, M.

AU - Lemmon, M.

AU - Lorenz, R.

AU - Pike, W. T.

AU - Scholz, J. R.

AU - Lognonné, P.

AU - Banerdt, B.

PY - 2021/12/15

Y1 - 2021/12/15

N2 - The rate of occurrence of High Frequency (HF) marsquakes, as recorded by InSight at Homestead Hollow, Elysium Planitia, increased after about LS=33∘, and ceased almost completely by LS=187∘, following an apparently seasonal variation with a peak rate near aphelion. We define seismic rate models based on the declination of the Sun, annual solar tides, and the annual CO2 cycle as measured by atmospheric pressure. Evaluation of Akaike weights and evidence ratios shows that the declination of the Sun is the most likely, and the CO2 cycle the least likely driver of this seismic activity, although the discrimination is weak, and the occurrence of a few events in August 2020 is in favor for a triggering by CO2 ice load. We also show that no periodicity related to Phobos' orbit is present in the HF event sequence. Event rate forecasts are presented to allow further discrimination of candidate mechanisms from future observations.

AB - The rate of occurrence of High Frequency (HF) marsquakes, as recorded by InSight at Homestead Hollow, Elysium Planitia, increased after about LS=33∘, and ceased almost completely by LS=187∘, following an apparently seasonal variation with a peak rate near aphelion. We define seismic rate models based on the declination of the Sun, annual solar tides, and the annual CO2 cycle as measured by atmospheric pressure. Evaluation of Akaike weights and evidence ratios shows that the declination of the Sun is the most likely, and the CO2 cycle the least likely driver of this seismic activity, although the discrimination is weak, and the occurrence of a few events in August 2020 is in favor for a triggering by CO2 ice load. We also show that no periodicity related to Phobos' orbit is present in the HF event sequence. Event rate forecasts are presented to allow further discrimination of candidate mechanisms from future observations.

KW - Elysium Planitia

KW - InSight

KW - Mars

KW - Phobos

KW - seasonal seismic activity

U2 - 10.1016/j.epsl.2021.117171

DO - 10.1016/j.epsl.2021.117171

M3 - Article

AN - SCOPUS:85116002977

SN - 0012-821X

VL - 576

JO - Earth and Planetary Science Letters

JF - Earth and Planetary Science Letters

M1 - 117171

ER -

Seasonal seismic activity on Mars

Abstract

Keywords

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