Cross section of proposed magma plumbing system beneath the surface of Kīlauea

A cross section of proposed magma plumbing system beneath the surface of Kīlauea. “H” marks the Halema‘uma‘u reservoir; “SC” marks the south caldera reservoir; “K” marks the Keanakāko‘i reservoir; “HKIT” notes a connection between the Halema‘uma‘u reservoir and Kīlauea Iki; SWRZ denotes Southwest Rift Zone. The exact depths and geometries of these connections are not well known, but this cross section represents one of the hypothesized configurations.