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Earth, Planets and Space
Figure 2 | Earth, Planets and Space

Figure 2

From: Seismic moment and volume change of a spherical source

Figure 2

Spherical source with stress-free strain and strain-free stress. (a) Schematic view of a spherical source undergoing a transformational expansion (S5) based on imaginary cutting, straining, and welding operations of Eshelby (1957). (b) A spherical source in which a strain-free stress or pressure (δ P) is applied to the removed source volume (S6) (see text for details).

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