EGU2020-18862
https://doi.org/10.5194/egusphere-egu2020-18862
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Rotational sensor on a volcano: New insights from Etna, Italy

Eva P. S. Eibl1, Gilda Currenti2, Joachim Wassermann3, Philippe Jousset4, Daniel Vollmer1, Graziano Larocca2, Daniele Pellegrino2, Mario Pulviventi2, Danilo Contrafatto2, and Shihao Yuan3
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)
  • 2INGV, Catania, Italy
  • 3Geophysical Observatory Fürstenfeldbruck, Ludwigshöhe 8, 82256 Fürstenfelbruck, Germany
  • 4GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany

Rotational seismology is an emerging field of seismology with rotational sensors such as blueSeis-3A as portable devices. We deployed one of these rotational sensors on Etna volcano from August to September 2019 in the middle of a 26 stations broadband seismic array and a fibre-optic cable deployed for Distributed Acoustic Sensing (DAS). We, therefore, recorded continuously the full seismic wavefield using a 6C station (rotational sensor co-located with a broadband seismometer) for 30 days.

We will present an overview of our work on the rotational data in combination with a broadband seismometer. We will (i) compare the translational with rotational data and show how they complement each other, (ii) calculate back azimuths using only a 6C station or using merely the horizontal components of the rotational sensor, (iii) determine Love and Rayleigh wave velocities from the rotation rate and (iv) perform a simple inversion for the shallow velocity structure below the station, and finally (v) discuss the usefulness of such a sensor in a volcanic environment and (vi) highlight what new it would bring to volcano-related research.

How to cite: Eibl, E. P. S., Currenti, G., Wassermann, J., Jousset, P., Vollmer, D., Larocca, G., Pellegrino, D., Pulviventi, M., Contrafatto, D., and Yuan, S.: Rotational sensor on a volcano: New insights from Etna, Italy, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-18862, https://doi.org/10.5194/egusphere-egu2020-18862, 2020

Comments on the presentation

AC: Author Comment | CC: Community Comment | Report abuse

Presentation version 1 – uploaded on 01 May 2020 , no comments