Earth Surface Dynamics
Earth Surface Dynamics
ESurf
Articles | Volume 6, issue 2
Articles | Volume 6, issue 2
https://doi.org/10.5194/esurf-6-467-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/esurf-6-467-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 6, issue 2
Research article
 | 
14 Jun 2018
Research article |  | 14 Jun 2018

Dynamics of the Askja caldera July 2014 landslide, Iceland, from seismic signal analysis: precursor, motion and aftermath

Anne Schöpa, Wei-An Chao, Bradley P. Lipovsky, Niels Hovius, Robert S. White, Robert G. Green, and Jens M. Turowski

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Short summary
On 21 July 2014, a voluminous landslide entered the caldera lake at Askja, Iceland, and created tsunami waves inundating famous tourist spots. The high hazard potential of the site motivated our study in which we analysed seismic data and found a precursory tremor signal intensifying in the 30 min before the landslide. Our paper shows the potential of seismic monitoring techniques to detect precursory activity before a big landslide that could be used for an early-warning system.
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From process to signal – advancing environmental...