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This dataset consists of 122 magnetotelluric (MT) soundings collected in 2016 in the northern Harrat Rahat, located near the holy city of Al-Madinah Al-Munawarah in Saudi Arabia. These data were collected as part of a joint project between the U.S. Geological Survey and the Saudi Geological Survey examining the volcanic hazard associated with the harrat. Imaging the 3-D electrical resistivity structure of the crust and upper mantle beneath the harrat will help in understanding the magmatic system at depth.
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This dataset consists of 16 repeated magnetotelluric (MT) stations collected on Mount Tongariro, New Zealand, before (2009) and after (2013) the 2012 eruption. The data were collected in same locations with similiar instruments. Preeruption and posteruption electromagnetic magnetotelluric measurements determine variation in subsurface electrical properties resulting from changes in magmatic system associated with the 2012 eruptive cycle.
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This dataset consists of 42 magnetotelluric (MT) stations collected in 2017 in the Northwest Geysers, CA and 534 gravity stations collected in 2017 and 2019. The U.S. Geological Survey acquired these data as part of a project to image the heat source in the Northwest Geysers. Support was from the U.S. Geological Survey's Volcano Hazards Program.
    map background search result map search result map Magnetotelluric data from northern Harrat Rahat, Saudi Arabia, 2016 Magnetotelluric and gravity data from the Northwest Geysers, California Repeat Magnetotelluric Transfer Functions from the 2012 Eruption of Tongariro, New Zealand Repeat Magnetotelluric Transfer Functions from the 2012 Eruption of Tongariro, New Zealand Magnetotelluric and gravity data from the Northwest Geysers, California Magnetotelluric data from northern Harrat Rahat, Saudi Arabia, 2016