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La crisis volcánica revela el sistema de magma acoplado en Santorini y Kolumbo
Marius P Isken1, Jens Karstens2, Paraskevi Nomikou3
1GFZ Helmholtz Centre for Geosciences, Potsdam, Germany. marius.isken@gfz.de.
Nature
|September 24, 2025
Resumen
Una crisis volcánica de 2025 reveló un sistema magmático vinculado entre los volcanes de Santorini y Kolumbo. El magma migró desde un depósito profundo debajo de Kolumbo, entrando como un dique debajo de Santorini, mostrando complejas interacciones volcánicas.
Área de la Ciencia:
- Volcanología
- La geofísica
- Tectónica
Sus antecedentes:
- Los volcanes de Santorini y Kolumbo en el mar Egeo están geográficamente cerca, pero sus profundas conexiones magmáticas son poco conocidas.
- Las crisis volcánicas ofrecen información sobre los procesos magmáticos subterráneos y las estructuras del sistema volcánico.
Objetivo del estudio:
- Para investigar los sistemas de alimentación magmática potencialmente acoplados de los volcanes Santorini y Kolumbo.
- Para reconstruir la migración de magma durante la crisis volcánico-tectónica de 2025 que afecta a ambos centros volcánicos.
Principales métodos:
- Integración de datos sismológicos terrestres y marinos.
- Utilización de mediciones geodésicas, incluidos datos de deformación basados en tierra y satélite.
- Técnicas de inversión conjunta para modelar la intrusión de magma.
Principales resultados:
- Un depósito de la corteza media debajo de Kolumbo dio origen a un dique lleno de magma que se introdujo hacia Santorini a partir de mediados de 2024.
- Aproximadamente 0,31 km3 de magma se introdujeron como un dique de 13 km de largo, reactivando fallas regionales.
- La intrusión del dique se detuvo a 3-5 km bajo el fondo marino, uniendo los dos sistemas volcánicos durante la crisis de 2025.
Conclusiones:
- La crisis de 2024-2025 demostró un acoplamiento dinámico entre los sistemas magmáticos de Santorini y Kolumbo.
- Los hallazgos proporcionan información sobre el almacenamiento, el transporte y los mecanismos de falla de los depósitos debajo de los volcanes vecinos.
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