Observation of equipartition of seismic waves.
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.
Hennino
R
R
Laboratoire de Géophysique Interne et Tectonophysique, Observatoire de Grenoble, Université Joseph Fourier, B.P. 53, 38041 Grenoble Cedex, France.
Trégourès
N
N
Shapiro
N M
NM
Margerin
L
L
Campillo
M
M
van Tiggelen
B A
BA
Weaver
R L
RL