References: 

Suda, N., K. Nawa, and Y. Fukao. 1998. Earth's background free oscillations. Science 279(March 27):2089.

Tanimoto, T., and J. Um. 1998. Earth's continuous oscillations observed on seismically quiet days. Geophysical Research Letters (May 15).

 

Further Readings: 

Kanamori, H. 1998. Shaking without quaking. Science 279(March 27):2063.

 

Sources:

Gregory C. Beroza
Stanford University
Department of Geophysics
Stanford, CA 94305-2215

Pierre Ihmlé
Institute of Geophysics
ETH-Hoenggerberg
CH-8093 Zurich
Switzerland

Hiroo Kanamori
California Institute of Technology
Seismological Laboratory
Pasadena, CA 91125

Naoki Kobayashi
Tokyo Institute of Technology
Department of Earth and Planetary Sciences
2-12-1 Ookayama
Meguro, Tokyo 152-8551
Japan

Barbara A. Romanowicz
University of California, Berkeley
Seismology Station
475 Earth Sciences Building
Berkeley, CA 94720

Toshiro Tanimoto
University of California, Santa Barbara
Department of Geological Sciences
Institute of Crustal Studies
Santa Barbara, CA 93106