近日,德国波茨坦GFZ亥姆霍兹地球科学中心Marius P. Isken团队报道了火山危机揭示了圣托里尼和科伦坡的耦合岩浆系统。这一研究成果发表在2025年9月24日出版的《自然》杂志上。
由岩浆重新流入和迁移引发的火山危机,会导致地表形变和地震活动,这为了解火山系统结构与岩浆过程提供了独特视角。尽管希腊爱琴海上高度活跃的圣托里尼火山与科伦坡火山仅相隔7公里,但人们对它们可能相互关联的深层岩浆供给系统却知之甚少。2025年圣托里尼的火山-构造危机同时影响了这两个火山中心,揭示了一个复杂的多储层供给系统。
研究组整合陆上与海洋地震数据及大地测量数据,重建了危机发生前后岩浆的运移过程。自2024年中期开始的圣托里尼破火山口缓慢膨胀,早于2025年1月从科伦坡下方地壳中部储库涌出的岩浆充填岩墙的侵入事件,表明两座火山之间存在联系。地面与卫星形变数据的联合反演显示,约0.31立方公里的岩浆以长约13公里的岩墙形式侵入,重新激活了区域主要断层并在海底以下3-5公里处停滞。2024至2025年间两个火山中心下方岩浆活动的复苏及其明显关联性,为理解相邻火山下岩浆存储、运移与储库破裂的动态相互作用提供了新见解。
附:英文原文
Title: Volcanic crisis reveals coupled magma system at Santorini and Kolumbo
Author: Isken, Marius P., Karstens, Jens, Nomikou, Paraskevi, Parks, Michelle Maree, Drouin, Vincent, Rivalta, Eleonora, Crutchley, Gareth J., Haghighi, Mahmud Haghshenas, Hooft, Emilie E. E., Cesca, Simone, Walter, Thomas R., Hainzl, Sebastian, Saul, Joachim, Anastasiou, Dimitris, Raptakis, Kostas, Shapiro, Nikolai M., Mnchmeyer, Jannes, Higueret, Quentin, Soubestre, Jean, Brenguier, Florent, Hufstetler, Rebeckah S., Autumn, Kaisa R., Tsakiri, Maria, Lange, Dietrich, Kopp, Heidrun, Urlaub, Morelia, Blanch Jover, Mara, Preine, Jonas, Hbscher, Christian, Motagh, Mahdi, Mller, Daniel, Dahm, Torsten, Berndt, Christian
Issue&Volume: 2025-09-24
Abstract: Volcanic crises, driven by renewed magma inflow and migration, result in surface deformation and seismicity that can provide unique insights into the structure of volcanic systems and magmatic processes. Although the highly explosive volcanoes of Santorini and Kolumbo1,2 in the Greek Aegean Sea are just 7km apart, their potentially coupled deep magmatic feeding systems are only poorly understood3,4. The 2025 volcano–tectonic crisis of Santorini simultaneously affected both volcanic centres, providing insights into a complex, multistorage feeder system. Here we integrate onshore and marine seismological data with geodetic measurements to reconstruct magma migration before and during the crisis. Gradual inflation in the Santorini caldera, beginning in mid-2024, preceded the January 2025 intrusion of a magma-filled dike sourced from a mid-crustal reservoir beneath Kolumbo, indicating a link between the two volcanoes. Joint inversion of ground and satellite-based deformation data indicates that approximately 0.31km3 of magma intruded as an approximately 13-km-long dike, reactivating principal regional faults and arresting 3–5km below the seafloor. The 2024–2025 resurgence of magmatic activity beneath both volcanic centres and their apparent coupling provides insights into the dynamic interplay of magma storage, transport and reservoir failure beneath neighbouring volcanoes.
DOI: 10.1038/s41586-025-09525-7
Source: https://www.nature.com/articles/s41586-025-09525-7
Nature:《自然》,创刊于1869年。隶属于施普林格·自然出版集团,最新IF:69.504
官方网址:http://www.nature.com/
投稿链接:http://www.nature.com/authors/submit_manuscript.html