EGU2020-16535
https://doi.org/10.5194/egusphere-egu2020-16535
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Seismic Eruption Catalog of Strokkur Geyser, Iceland

Eva P. S. Eibl1, Sebastian Hainzl2, Nele. I. K. Vesely1, Thomas R. Walter2, Philippe Jousset2, Gylfi P. Hersir3, and Torsten Dahm2
Eva P. S. Eibl et al.
  • 1University of Potsdam, Institute of Geosciences, Karl-Liebknecht-Str. 24-25, 14476 Potsdam, Germany (eva.ps.eibl@hotmail.com)
  • 2GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
  • 3ISOR, Reykjavik, Iceland

Geysers are hot springs whose frequency of water eruptions remain poorly understood. We setup a local broadband seismic network for one year at Strokkur geyser, Iceland, and developed an unprecedented catalog of 73,466 eruptions. We detected 50,135 single eruptions, but find that the geyser is also characterized by sets of up to six eruptions in quick succession. The number of single to sextuple eruptions exponentially decreased, while the mean waiting time after an eruption linearly increased (3.7 to 16.4 min). While secondary eruptions within double to sextuple eruptions have smaller mean seismic amplitudes, the amplitude of the first eruption is comparable for all eruption types. We statistically assess and model the eruption frequency assuming discharges proportional to the eruption multiplicity and a constant probability for subsequent events within a multi‐tuple eruption. We conclude that the waiting time after an eruption is predictable, but not the type or amplitude of the next one.

How to cite: Eibl, E. P. S., Hainzl, S., Vesely, N. I. K., Walter, T. R., Jousset, P., Hersir, G. P., and Dahm, T.: Seismic Eruption Catalog of Strokkur Geyser, Iceland, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-16535, https://doi.org/10.5194/egusphere-egu2020-16535, 2020

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Presentation version 2 – uploaded on 04 May 2020
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  • CC1: Comment on EGU2020-16535, Ingi Þorleifur Bjarnason, 07 May 2020

    Hi Eva, What is the accuracy of your prediting eruptions in Strokkur? Can we learn anything from this work for earthquake predition?

    Cheers, Ingi

Presentation version 1 – uploaded on 10 Apr 2020 , no comments