Details:

Personal Author:
Nooner, S. L. ; Chadwick, W. W. ;
Nooner, S. L. ; Chadwick, W. 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
Document Type:
Journal Article ;
Rights Information:
Accepted Manuscript
Main Document Checksum:
[+]
urn:sha256:3ea72ac9899ed0a50beb281d87cb4313ec5f9d7b4d72e129d4e0e704658c1e01
File Type:

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