Cut-away view looking deep beneath Kilauea Volcano, showing the shallow magma reservoir and the principal magma passageways. Areas in yellow are the most favorable zones for magma movement (arrows show direction) and storage. Though greatly generalized, this depiction of Kilauea's "plumbing system" is compatible with all known scientific information. (Figure by Michael P. Ryan, simplified from his technical illustrations in USGS Professional Paper 1350, Volume 2, Chapter 52.)

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