Affiliation:
1. Earthquake Research Institute The University of Tokyo Tokyo Japan
2. Graduate School of Science and Technology Hirosaki University Hirosaki Japan
3. Université Paris Cité Institut de Physique du Globe de Paris CNRS Paris France
4. Institut de Recherche en Astrophysique et Planétologie Université Toulouse III Paul Sabatier CNRS CNES Toulouse France
5. Jet Propulsion Laboratory California Institute of Technology Pasadena CA USA
Abstract
AbstractOn 4 May 2022, the seismometer on Mars observed the largest marsquake (S1222a) during its operation. One of the most specific features of S1222a is the long event duration lasting more than 8 hr, in addition to the clear appearance of body and surface waves. As demonstrated on Earth, by modeling a long‐lasting and scattered surface wave with the radiative transfer theory under the isotropic scattering condition, we estimated the scattering and intrinsic quality factors of Mars (Qs and Qi). This study especially focused on the frequency range between 0.05–0.09 Hz, where Qs and Qi have not been constrained yet. Our results revealed that Qi = 1,000–1,500 and Qs = 30–500. By summarizing the Martian Qi and Qs estimated so far and by comparing them with those of other celestial bodies, we found that, overall, the Martian scattering and absorption properties showed Earth‐like values.
Publisher
American Geophysical Union (AGU)
Subject
General Earth and Planetary Sciences,Geophysics
Cited by
1 articles.
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