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Phys. Rev. Lett. 86, 3447–3450 (2001)

Observation of Equipartition of Seismic Waves

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R. Hennino1, N. Trégourès2, N. M. Shapiro3, L. Margerin1,4, M. Campillo1, B. A. van Tiggelen2,*, and R. L. Weaver5
1Laboratoire de Géophysique Interne et Tectonophysique, Observatoire de Grenoble, Université Joseph Fourier, B.P. 53, 38041 Grenoble Cedex, France
2Laboratoire de Physique et Modélisation des Milieux Condensés, CNRS/Université Joseph Fourier, B.P. 166, 38042 Grenoble Cedex 09, France
3Instituto de Geofisica, Universidad Nacional Autonoma de México, CU 04510 México, D.F., Mexico
4Department of Geosciences, Princeton University, Guyot Hall, Princeton, New Jersey 08544
5Department of Theoretical and Applied Mechanics, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801

Received 29 September 2000; published in the issue dated 9 April 2001

See accompanying Physics Focus

Equipartition is a first principle in wave transport, based on the tendency of multiple scattering to homogenize phase space. We report observations of this principle for seismic waves created by earthquakes in Mexico. We find qualitative agreement with an equipartition model that accounts for mode conversions at the Earth's surface.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.86.3447
DOI:
10.1103/PhysRevLett.86.3447
PACS:
91.30.Fn, 46.40.Cd, 62.30.+d, 91.30.Dk

*Corresponding author.

 
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