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Earth, Planets and Space
Fig. 2 | Earth, Planets and Space

Fig. 2

From: Upper mantle structure beneath the Society hotspot and surrounding region using broadband data from ocean floor and islands

Fig. 2

Schematic diagram of the two-station method. A, B Seismic stations. E is the source location. B′ is the projected point of B on the AE great circle. Gray broken lines indicate the Rayleigh wave front. Using the two-station method, the phase velocity between A and B′ is measured under the condition that the wave front propagates as a plane wave

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