Articles | Volume 11, issue 5
https://doi.org/10.5194/esurf-11-933-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/esurf-11-933-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
05 Oct 2023
Research article |
| 05 Oct 2023
| 05 Oct 2023
Subaerial and subglacial seismic characteristics of the largest measured jökulhlaup from the eastern Skaftá cauldron, Iceland
Institute of Geosciences, University of Potsdam, Karl-Liebknecht-Str. 24–25, 14476 Potsdam, Germany
Invited contribution by Eva P. S. Eibl, recipient of the EGU Seismology Division Outstanding Early Career Scientists Award 2021.
Kristin S. Vogfjörd
Icelandic Meteorological Office, Bústaðavegi 7–9, 108 Reykjavik, Iceland
Benedikt G. Ófeigsson
Icelandic Meteorological Office, Bústaðavegi 7–9, 108 Reykjavik, Iceland
Matthew J. Roberts
Icelandic Meteorological Office, Bústaðavegi 7–9, 108 Reykjavik, Iceland
Christopher J. Bean
Geophysics Section, School of Cosmic Physics, Dublin Institute for Advanced Studies, 5 Merrion Square, Dublin 2, Ireland
Morgan T. Jones
Centre for Planetary Habitability (PHAB), Department of Geosciences, University of Oslo, P.O. Box 1028, Blindern 0315, Oslo, Norway
Bergur H. Bergsson
Icelandic Meteorological Office, Bústaðavegi 7–9, 108 Reykjavik, Iceland
Sebastian Heimann
Institute of Geosciences, University of Potsdam, Karl-Liebknecht-Str. 24–25, 14476 Potsdam, Germany
Thoralf Dietrich
Institute of Geosciences, University of Potsdam, Karl-Liebknecht-Str. 24–25, 14476 Potsdam, Germany
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Short summary
Floods draining beneath an ice cap are hazardous events that generate six different short- or long-lasting types of seismic signals. We use these signals to see the collapse of the ice once the water has left the lake, the propagation of the flood front to the terminus, hydrothermal explosions and boiling in the bedrock beneath the drained lake, and increased water flow at rapids in the glacial river. We can thus track the flood and assess the associated hazards better in future flooding events.
Floods draining beneath an ice cap are hazardous events that generate six different short- or...
