Electromagnetic induction in the Earth

Measurements of electrical properties of the Earth using electromagnetic induction (EM) can elucidate geological structures and processes ranging from meter to mantle scale. The 18th International Workshop on Electromagnetic Induction in the Earth (EMIW) highlighted how recent theoretical and instrumental advances are being applied in high‐quality EM induction studies from around the world, at lithospheric, crustal, and near‐surface scales. Important aspects of the lithospheric and crustal studies presented included the demonstration of the increased resolution provided by dense two‐dimensional magnetotelluric (MT) profiles and three‐dimensional grids, the common use of the improved impedance tensor decomposition method to correct regional MT responses, widespread consideration of implicitly anisotropic materials within multidimensional MT models, and, in the numerical modeling field, the increased use of unstructured meshes. Review papers provided an overview of the large‐scale EM surveys and spatial variations in the European lithosphere and addressed the role of EM in monitoring seismic and volcanic crustal processes.