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Tromp & Zanzerkia 1995
Tromp, J. and Zanzerkia, E. (1995). Toroidal splitting observations from the Great 1994 Bolivia and Kuril Islands Earthquakes. Geophysical Research Letters 22: doi: 10.1029/95GL01810. issn: 0094-8276.

The June 9, 1994, Bolivia earthquake and the October 4, 1994, Kuril Islands earthquake provide a unique opportunity for a splitting analysis of the Earth's long-period toroidal free oscillations. We present toroidal splitting observations for the 6 fundamental modes 0T4, 0T5, 0T6, 0T7, 0T8, and 0T9, and for the 5 first overtones 1T1, 1T2, 1T3, 1T4, and 1T6. The first identification of mode 1T1 is made possible by simultaneously fitting the multiples 1T1 and 0T7. The observed splitting is reasonably well explained by current shear velocity models of the mantle. Our analysis yields new estimates of the center frequencies and quality factors of these 11 toroidal modes. ¿ American Geophysical Union 1995

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Keywords
Seismology, Seismicity and seismotectonics, Tectonophysics, Dynamics of lithosphere and mantle—general
Journal
Geophysical Research Letters
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Publisher
American Geophysical Union
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