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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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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Details:

Journal Title:

Science

Personal Author:

Nooner, Scott L. ; Chadwick, William W.

NOAA Program & Office:

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

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

Compliance:

Submitted

Main Document Checksum:

[+]

Download URL:

https://repository.library.noaa.gov/view/noaa/17302/noaa_17302_DS1.pdf

File Type:

Available dataset

htm

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