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Seafloor deformation and forecasts of the April 2011 eruption at Axial Seamount

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dc.creator Chadwick, William W., Jr.
dc.creator Nooner, Scott L.
dc.creator Butterfield, David A.
dc.creator Lilley, Marvin D.
dc.date.accessioned 2012-09-24T18:20:39Z
dc.date.available 2012-09-24T18:20:39Z
dc.date.issued 2012-07
dc.identifier.citation Chadwick, W., Nooner, S., Butterfield, D., & Lilley, M. (2012). Seafloor deformation and forecasts of the april 2011 eruption at axial seamount. NATURE GEOSCIENCE, 5(7), 474-477. doi: 10.1038/ngeo1464 en_US
dc.identifier.uri http://hdl.handle.net/1957/33816
dc.description This is the publisher’s final pdf. The published article is copyrighted by Macmillan Publishers Limited and can be found at: http://www.nature.com/ngeo/index.html. To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. en_US
dc.description.abstract Axial Seamount is an active submarine volcano located at the intersection between the Cobb hotspot and the Juan de Fuca spreading centre in the northeast Pacific Ocean1, 2. The volcano has been closely monitored since it erupted in 1998 (refs 3, 4). Since then, Axial Seamount seemed to exhibit a similar inflation–deflation cycle to basaltic volcanoes on land and, on that basis, was expected to erupt again sometime before 2014 or 2020 (refs 5, 6). In April 2011 Axial Seamount erupted. Here we report continuous measurements of ocean bottom pressure that document the deflation–inflation cycle of Axial Seamount between 1998 and 2011. We find that the volcano inflation rate, caused by the intrusion of magma, gradually increased in the months leading up to the 2011 eruption. Sudden uplift occurred 40–55 min before the eruption onset, which we interpret as a precursor event. Based on our measurements of ground deformation through the entire eruption cycle at Axial Seamount, we suggest that another eruption could occur as early as 2018. We propose that the long-term eruptive cycle of Axial Seamount could be more predictable compared with its subaerial counterparts because the volcano receives a relatively steady supply of magma through the Cobb hotspot and because it is located on thin oceanic crust at a spreading plate boundary. en_US
dc.description.sponsorship This work was supported by grant OCE-0725605 from the National Science Foundation, the National Oceanic and Atmospheric Administration Vents Program and the National Oceanic and Atmospheric Administration Undersea Research Program, with support from the Pacific Marine Environmental Laboratory's Engineering Development Division. en_US
dc.language.iso en_US en_US
dc.publisher Macmillan Publishers Limited en_US
dc.relation.ispartofseries Nature Geoscience en_US
dc.relation.ispartofseries Vol. 5 no. 7 en_US
dc.title Seafloor deformation and forecasts of the April 2011 eruption at Axial Seamount en_US
dc.type Article en_US
dc.description.peerreview yes en_US
dc.identifier.doi 10.1038/ngeo1464

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