000005251 001__ 5251
000005251 005__ 20210201175123.0
000005251 0247_ $$2DOI$$a10.1038/s41561-020-0539-8
000005251 037__ $$aSCART-2021-0049
000005251 100__ $$aGiardini, D. 
000005251 245__ $$aThe seismicity of Mars
000005251 260__ $$c2020
000005251 520__ $$aThe InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) mission landed in Elysium Planitia on Mars on 26 November 2018 and fully deployed its seismometer by the end of February 2019. The mission aims to detect, characterize and locate seismic activity on Mars, and to further constrain the internal structure, composition and dynamics of the planet. Here, we present seismometer data recorded until 30 September 2019, which reveal that Mars is seismically active. We identify 174 marsquakes, comprising two distinct populations: 150 small-magnitude, high-frequency events with waves propagating at crustal depths and 24 low-frequency, subcrustal events of magnitude Mw 3--4 with waves propagating at various depths in the mantle. These marsquakes have spectral characteristics similar to the seismicity observed on the Earth and Moon. We determine that two of the largest detected marsquakes were located near the Cerberus Fossae fracture system. From the recorded seismicity, we constrain attenuation in the crust and mantle, and find indications of a potential low-S-wave-velocity layer in the upper mantle.
000005251 536__ $$a3PRODPLANINT/$$c3PRODPLANINT/$$f3PRODPLANINT
000005251 594__ $$aNO
000005251 700__ $$a Lognonné, P. 
000005251 700__ $$a Banerdt, W. B. 
000005251 700__ $$a Pike, W. T. 
000005251 700__ $$a Christensen, U. 
000005251 700__ $$a Ceylan, S. 
000005251 700__ $$a Clinton, J. F. 
000005251 700__ $$a van Driel, M. 
000005251 700__ $$a Stähler, S. C. 
000005251 700__ $$a Böse, M. 
000005251 700__ $$a Garcia, R. F. 
000005251 700__ $$a Khan, A. 
000005251 700__ $$a Panning, M. 
000005251 700__ $$a Perrin, C. 
000005251 700__ $$a Banfield, D. 
000005251 700__ $$a Beucler, E. 
000005251 700__ $$a Charalambous, C. 
000005251 700__ $$a Euchner, F. 
000005251 700__ $$a Horleston, A. 
000005251 700__ $$a Jacob, A. 
000005251 700__ $$a Kawamura, T. 
000005251 700__ $$a Kedar, S. 
000005251 700__ $$a Mainsant, G. 
000005251 700__ $$a Scholz, J. -R. 
000005251 700__ $$a Smrekar, S. E. 
000005251 700__ $$a Spiga, A. 
000005251 700__ $$a Agard, C. 
000005251 700__ $$a Antonangeli, D. 
000005251 700__ $$a Barkaoui, S. 
000005251 700__ $$a Barrett, E. 
000005251 700__ $$a Combes, P. 
000005251 700__ $$a Conejero, V. 
000005251 700__ $$a Daubar, I. 
000005251 700__ $$a Drilleau, M. 
000005251 700__ $$a Ferrier, C. 
000005251 700__ $$a Gabsi, T. 
000005251 700__ $$a Gudkova, T. 
000005251 700__ $$a Hurst, K. 
000005251 700__ $$a Karakostas, F. 
000005251 700__ $$a King, S. 
000005251 700__ $$a Knapmeyer, M. 
000005251 700__ $$a Knapmeyer-Endrun, B. 
000005251 700__ $$a Llorca-Cejudo, R. 
000005251 700__ $$a Lucas, A. 
000005251 700__ $$a Luno, L. 
000005251 700__ $$a Margerin, L. 
000005251 700__ $$a McClean, J. B. 
000005251 700__ $$a Mimoun, D. 
000005251 700__ $$a Murdoch, N. 
000005251 700__ $$a Nimmo, F. 
000005251 700__ $$a Nonon, M. 
000005251 700__ $$a Pardo, C. 
000005251 700__ $$a Rivoldini, A. 
000005251 700__ $$a Manfredi, J. A. Rodriguez 
000005251 700__ $$a Samuel, H. 
000005251 700__ $$a Schimmel, M. 
000005251 700__ $$a Stott, A. E. 
000005251 700__ $$a Stutzmann, E. 
000005251 700__ $$a Teanby, N. 
000005251 700__ $$a Warren, T. 
000005251 700__ $$a Weber, R. C. 
000005251 700__ $$a Wieczorek, M. 
000005251 700__ $$a Yana, C.
000005251 773__ $$n3$$pNature Geoscience$$v13$$y2020
000005251 8560_ $$fattilio.rivoldini@observatoire.be
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