This manuscript has ripened for several years. 🙂 It is now published with Earth Surface Dynamics and provides an overview of all seismological signals detected during the 2015 Skafta jökulhlaup. This includes tremor migrating with the flood front, hydrothermal explosion signals, geothermal boiling and subaerial river tremor as well as icequakes linked to the gradual collapse of the ice shelf above the lake and transient event migrating with the flood front. We show the diversity of processes that get activated during the largest measured jökulhlaup since the beginning of measurements and provide high-resolution images of the flood front and ice sheet collapse.
The signals were analysed using data from a seismic array at 10 to 50 km distance from the source installed by the University College Dublin and the local seismic network maintained by the Icelandic Meteorological Office. The paper can be found here: https://esurf.copernicus.org/articles/11/933/2023/
The lists of tremor back azimuths and earthquake locations are available on GFZ Data Services:
Eibl, E. P. S.; Vogfjörd, K.; Dietrich, T.; Heimann, S., Bean, C. (2023): Event catalogs of seismic events accompanying the 30 September to 5 October 2015 Skaftá flood. GFZ Data Services. doi: 10.5880/fidgeo.2023.023
Data publication:
Bean, Christopher J.; Vogfjörd, Kristin S. (2020): Seismic array data for monitoring and tracking tremor sources during subglacial floods and volcanic eruptions at Vatnajökull (Vatna Glacier), Iceland. GFZ Data Services. Other/Seismic Network. doi:10.14470/0Y7568667884.
Prof. Eva P. S. Eibl, PhD 