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Session Proposal: Santorini Volcanic Region: Interdisciplinary Perspectives on Magmatism, Tectonics, and the 2025 Seismic Crisis (AGU25)

V028
Santorini Volcanic Region: Interdisciplinary Perspectives on Magmatism, Tectonics, and the 2025 Seismic Crisis

Session ID#: 248937

Session Description:
Santorini is one of the most well studied arc volcanoes, yet the volcano-tectonic dynamics of the region are not fully understood. A recent seismic crisis prompted significant interest in the sources of volcanism and interplay with local faulting. This session invites contributions from seismic, tectonic, petrological, geochemical, and other disciplines that explore this region. We encourage studies related to the January–February 2025 seismic swarm, which prompted evacuations and highlighted the real-time impact of volcanic hazards on Greek communities. With recent and ongoing efforts, including marine geophysical surveys and results from the IODP drilling cruise, this is a timely opportunity to integrate diverse research threads. We welcome submissions on magmatic processes, tectonic evolution, eruption history, and monitoring strategies, as well as comparative studies from similar volcano-tectonic systems. This session will bring together a broad community sharing insights and fostering collaboration on one of Earth’s most iconic and actively studied volcanic regions.
Co-Sponsor(s):
  • S - Seismology
Index Terms:

1036 Magma chamber processes [GEOCHEMISTRY]
8178 Tectonics and magmatism [TECTONOPHYSICS]
8439 Physics and chemistry of magma bodies [VOLCANOLOGY]
8440 Calderas [VOLCANOLOGY]
Primary Convener:  Rebeckah S Hufstetler, University of Oregon, Department of Earth Sciences, Eugene, United States
Conveners:  Sarah Beethe, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States and Emilie E E Hooft, PhD, University of Oregon, Department of Earth Sciences, Eugene, United States
Student/Early Career Convener:  Kaisa Autumn, University of Oregon, Department of Earth Sciences, Eugene, United States
 
Deciphering the 2025 Santorini Seismic Swarm Through High-Resolution Earthquake Catalog and Moment Tensor Analyses (1871415)
Savvas Marcou1,2, Bo Rong1 and Weiqiang Zhu1, (1)University of California, Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (2)University of California, Berkeley, Berkeley Seismological Laboratory, Berkeley, United States
 
A Multi-Chronometer Assessment of the Archaeos Tuff: Implications for Eruption Chronologies, Timescales, and Magma Accumulation (1894869)
Sarah Beethe1, Axel K. Schmitt2, Anthony Koppers1, Adam Woodhouse3, Abigail Metcalfe4, Katharina Pank5, Timothy H Druitt6, Steffen Kutterolf5, Thomas Ronge7 and IODP Exp. 398 Scientists, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (2)Curtin University, John de Laeter Centre, Perth, Australia, (3)Cardiff University, School of Earth and Environmental Sciences, Cardiff, United Kingdom, (4)Université Clermont Auvergne, Laboratoire Magmas et Volcans UMR6524, Clermont Ferrand, France, (5)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (6)Univ Blaise Pascal, Clermont Ferrand, France, (7)Texas A&M University, International Ocean Discovery Program, College Station, United States
 
The Source of the Amorgos 1956 Tsunamigenic Earthquake (M~7.5) Revealed by Submarine Observations (1906941)
Frédérique Leclerc1, Sylvain Palagonia1, Nathalie Feuillet2, Paraskevi Nomikou3, Danai Lampridou3, Paul Barrière1, Alexandre Dano1, Eduardo Ochoa4, Nuno Gracias4 and Javier Escartin5, (1)Géoazur, Université Côte d’Azur/OCA/CNRS/IRD, Valbonne, France, (2)Université Paris Cité, Institut de Physique du Globe de Paris, CNRS, Paris, France, (3)National and Kapodistrian University of Athens, Department of Geology and Geoenvironment, Athens, Greece, (4)Computer Vision and Robotics Institute, University of Girona, Girona, Spain, (5)Laboratoire de Géologie, Ecole Normale Supérieure de Paris, Paris, France
 
Tectonic Modulation of Explosive Volcanism at Santorini-Kolumbo. Synthesis of First Results from IODP Expedition 398 (1923409)
Timothy H Druitt1, Abigail Metcalfe1, Katharina Pank2, Steffen Kutterolf2, Jonas Preine3, Christian P Huebscher4, Paraskevi Nomikou5, Thomas Ronge6 and IODP Expedition 398 Scientists, (1)Université Clermont Auvergne, Laboratoire Magmas et Volcans UMR6524, Clermont Ferrand, France, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (3)Woods Hole Oceanographic Institution, Geology and Geophysics, Woods Hole, United States, (4)University of Hamburg, Hamburg, Germany, (5)National and Kapodistrian University of Athens, Department of Geology and Geoenvironment, Athens, Greece, (6)Texas A&M University, International Ocean Discovery Program, College Station, United States
 
Resolving the Final Phase of the 2025 Santorini-Amorgos Seismic Swarm Using a Local Ocean Bottom Seismometer Array (1949453)
Emma P M Gregory1, Dr. Gaye Bayrakci, PhD Eng1, Jean-Baptiste Tary2, Isobel A Yeo1 and Shipboard Scientific Party of Expedition DY190, (1)National Oceanography Centre, Southampton, United Kingdom, (2)Dublin Institute for Advanced Studies, Geophysics section, Dublin, Ireland
 
Structural controls on hydrothermal fluid flow at Santorini and Kolumbo VolcanoesStructural controls on hydrothermal fluid flow at Santorini and Kolumbo Volcanoes (1958213)
Isobel A Yeo1, Emma P M Gregory1,2, Michael Andrew Clare3, Paraskevi Nomikou4, John William Jamieson5, Dr. Gaye Bayrakci, PhD Eng6, Anna Lichtschlag1,7, Gemma Portlock8, Sofia Della Sala9, Katlin Bowman Adamczyk10, Erin Bethell11, Alice Hopkins12, Jacob Nash13, Jennifer Spalding14, Jaycee Favela15, Sebastian Hölz16, Martin Wollatz-Vogt16, Tom Kwasnitschka16, Emilie E E Hooft, PhD17, Anna Katsigera18, Konstantin Reeck16, Hannah Zimmer16 and Jieyu Tan16, (1)National Oceanography Centre, Southampton, United Kingdom, (2)University of Durham, Durham, United Kingdom, (3)University of Southampton, National Oceanography Centre, Southampton, United Kingdom, (4)National and Kapodistrian University of Athens, Department of Geology and Geoenvironment, Athens, Greece, (5)Memorial University of Newfoundland, Earth Sciences, St John's, NL, Canada, (6)National Oceanography Center, Southampton, Southampton, United Kingdom, (7)Max Planck Institute for Marine Microbiology, HGF-MPG Group for Deep Sea Ecology and Technology, Bremen, Germany, (8)University of Southampton, Southampton, SO14, United Kingdom, (9)University of Oxford, Oxford, United Kingdom, (10)United States Geological Survey, Global Marine Minerals, Santa Cruz, United States, (11)University of Ottawa, Earth and Environmental Sciences, Ottawa, ON, Canada, (12)University of Leeds, Leeds, United Kingdom, (13)National Oceanography Center, Liverpool, United Kingdom, (14)university of ottawa, ottawa, Canada, (15)USGS Global Marine Minerals, Menlo Park, United States, (16)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (17)University of Oregon, Department of Earth Sciences, Eugene, United States, (18)National and Kapodistrian University of Athens, Athens, Greece
 
Characterizing Eruption Initiation Mechanisms and Storage Conditions at the High-Threat Submarine Volcano, Kolumbo, Greece (1982157)
Teagan Maher1, Susan M DeBari2, Timothy H Druitt3, Abigail Metcalfe3, Steffen Kutterolf4, Ally Peccia5, Thomas Ronge6 and IODP Expedition 398 Scientists, (1)Western Washington University, Bellingham, WA, United States, (2)Western Washington University, Geology Department, Bellingham, United States, (3)Université Clermont Auvergne, Laboratoire Magmas et Volcans UMR6524, Clermont Ferrand, France, (4)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (5)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (6)Texas A&M University, International Ocean Discovery Program, College Station, United States
 
30 km-long Dike Intrusion in the Christiana-Santorini-Kolumbo Rift Zone Supplied by Multiple Magma Reservoirs (1983463)
John Wilding1, Taiyi Wang2, Yuan-Kai Liu2 and Zachary E. Ross2, (1)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, (2)California Institute of Technology, Seismological Laboratory, Pasadena, United States
 
Faults, seismicity migration, and pulse-like episodes during the 2025 Santorini-Amorgos sequence (1983777)
Xing Tan1, William L Ellsworth1, Gregory C Beroza1, Stephanie G Prejean2 and Jeremy D Pesicek3, (1)Stanford University, Department of Geophysics, Stanford, CA, United States, (2)Alaska Volcano Observatory Anchorage, Anchorage, AK, United States, (3)U.S. Geological Survey, Volcano Disaster Assistance Program, Vancouver, United States
 
Decoding Subsurface Mechanisms Behind the 2025 Kolumbo Volcano-tectonic Unrest (1997448)
Kyriaki Drymoni1,2, Társilo Girona3, Jeremy D Pesicek4, Stephanie G Prejean4, Paul Lundgren2, Jackie Kendrick1 and Yan Lavallée1, (1)Ludwig Maximilians University of Munich, Earth and Environmental Sciences, Munich, Germany, (2)Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, (3)Geosciences Barcelona, Spanish National Research Council (CSIC), Barcelona, Spain, (4)U.S. Geological Survey, Volcano Disaster Assistance Program, Vancouver, United States
See more of: Volcanology, Geochemistry and Petrology
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