Inflation-predictable behavior and co-eruption deformation at Axial Seamount

Nooner, Scott L.; Chadwick, William W.

doi:10.1126/science.aah4666

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

i

Inflation-predictable behavior and co-eruption deformation at Axial Seamount

2016
By Nooner, Scott L. ; Chadwick, William W.
Source: Science, 354(6318), 1399-1403.

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Journal Title:

Science
Personal Author:

Nooner, Scott L. ; Chadwick, William W.

Nooner, Scott L. ; Chadwick, William W. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; CIMRS (Cooperative Institute for Marine Resources Studies)

OAR (Oceanic and Atmospheric Research) ; CIMRS (Cooperative Institute for Marine Resources Studies) Less -
Description:

Deformation of the ground surface at active volcanoes provides information about magma movements at depth. Improved seafloor deformation measurements between 2011 and 2015 documented a fourfold increase in magma supply and confirmed that Axial Seamount's eruptive behavior is inflation-predictable, probably triggered by a critical level of magmatic pressure. A 2015 eruption was successfully forecast on the basis of this deformation pattern and marked the first time that deflation and tilt were captured in real time by a new seafloor cabled observatory, revealing the timing, location, and volume of eruption-related magma movements. Improved modeling of the deformation suggests a steeply dipping prolate-spheroid pressure source beneath the eastern caldera that is consistent with the location of the zone of highest melt within the subcaldera magma reservoir determined from multichannel seismic results.
Source:

Science, 354(6318), 1399-1403.
DOI:

https://doi.org/10.1126/science.aah4666
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Journal Article
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