Previous models suggested sediments are pushed down the subduction zone ahead of the seamount, but the scan revealed something different: a massive sediment trail in Pāpaku's wake. Images from the scan show the seamount colliding with the subduction zone and the pattern of stresses, fluids and sediments surrounding it. Known as the Pāpaku Seamount, the long extinct volcano lies some three miles under the seafloor inside the Hikurangi subduction zone off the coast of New Zealand. In 2018, Bangs led an ocean seismic survey that resulted in the first ever 3D scan of a large subducting seamount. The research was led by Nathan Bangs, a senior research scientist at the University of Texas Institute for Geophysics. ![]() The findings, published June 7, 2023, in the journal Nature Geoscience, can be used to adjust earthquake models and help scientists unravel the mechanisms that drive earthquakes.
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