Links between volcanic activity and flank creep behavior at Pacaya Volcano, Guatemala
Links between volcanic activity and flank creep behavior at Pacaya Volcano, Guatemala
复制标题
危地马拉帕卡亚火山的火山活动与侧翼蠕动行为之间的联系
DOI:
10.1007/s00445-022-01592-2
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发表时间:
2022
影响因子:
3.5
通讯作者:
Burns, Michelle
中科院分区:
文献类型:
--
作者:
Gonzalez-Santana, Judit;Wauthier, Christelle;Burns, Michelle
Magmatism is a recognized potential driver of volcanic flank instability. Recently, this driver was identified at Pacaya Volcano, Guatemala, where a large eruption in 2014 accelerated southwest flank creep. This work investigates the links between flank creep and eruptive behavior at Pacaya to better understand the conditions under which flank creep can be initiated, sustained, or halted at active volcanoes. Time-series of surface displacements from 2007 to 2020 computed using seven Synthetic Aperture Radar datasets are compared with volcanic activity reports, ash advisories, thermal anomalies, and lava flow maps. We find that large transient flank instabilities occurred during vigorous eruptions in 2010 and 2014, but not during times of similarly elevated activity in 2007–2009 and 2018–2020. Flank creep continued years after the two transient instability events, during the relatively quiescent intervals of 2010–2014 and 2015–2018. During periods of elevated volcanic unrest attributed to open-vent volcanic activity, as in 2007–2009 and 2018–2020, magma migrates in an open conduit with little associated deformation or flank motion. Conversely, the opening of new vents outside the summit area, irrespective of whether this marks the start or a transition in an eruption, can initiate transient flank creep as in 2010 and 2014. Thus, future opening of new magma pathways, particularly in a north-northwest to south-southeast alignment, might provide forewarning for an increased likelihood of renewed or accelerating flank creep at Pacaya.
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影响因子:
2.6
作者:
W. Rose;J. L. Palma;R. Wolf;R. M. Gomez
通讯作者:
R. M. Gomez
DOI:
10.1029/2018jb016199
发表时间:
2019-01
期刊:
Journal of Geophysical Research: Solid Earth
影响因子:
--
作者:
K. Reath;M. Pritchard;M. Poland;F. Delgado;S. Carn;D. Coppola;B. Andrews;S. Ebmeier;E. Rumpf;S. Henderson;S. Baker;P. Lundgren;Rosalind J Wright;J. Biggs;T. Lopez;C. Wauthier;S. Moruzzi;A. Alcott;R. Wessels;J. Griswold;S. Ogburn;S. Loughlin;F. Meyer;G. Vaughan;M. Bagnardi
通讯作者:
K. Reath;M. Pritchard;M. Poland;F. Delgado;S. Carn;D. Coppola;B. Andrews;S. Ebmeier;E. Rumpf;S. Henderson;S. Baker;P. Lundgren;Rosalind J Wright;J. Biggs;T. Lopez;C. Wauthier;S. Moruzzi;A. Alcott;R. Wessels;J. Griswold;S. Ogburn;S. Loughlin;F. Meyer;G. Vaughan;M. Bagnardi
影响因子:
2.9
作者:
A. Dufresne;L. Siebert;B. Bernard
通讯作者:
B. Bernard
影响因子:
2.9
作者:
K. Wnuk;C. Wauthier
通讯作者:
C. Wauthier
DOI:
10.1016/j.jvolgeores.2011.12.001
发表时间:
2012-02-15
影响因子:
2.9
作者:
Coppola, D.;Piscopo, D.;Ripepe, M.
通讯作者:
Ripepe, M.