Induced seismicity risk analysis of the hydraulic stimulation  of a geothermal well on Geldinganes, Iceland

Broccardo, Marco; Mignan, Arnaud; Grigoli, Francesco; Karvounis, Dimitrios; Rinaldi, Antonio Pio; Danciu, Laurentiu; Hofmann, Hannes; Milkereit, Claus; Dahm, Torsten; Zimmermann, Günter; Hjörleifsdóttir, Vala; Wiemer, Stefan

doi:https://doi.org/10.5194/nhess-20-1573-2020

Articles | Volume 20, issue 6

https://doi.org/10.5194/nhess-20-1573-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/nhess-20-1573-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 6

Research article

| Highlight paper

|

04 Jun 2020

Research article | Highlight paper |

| 04 Jun 2020

Induced seismicity risk analysis of the hydraulic stimulation of a geothermal well on Geldinganes, Iceland

Marco Broccardo, Arnaud Mignan, Francesco Grigoli, Dimitrios Karvounis, Antonio Pio Rinaldi, Laurentiu Danciu, Hannes Hofmann, Claus Milkereit, Torsten Dahm, Günter Zimmermann, Vala Hjörleifsdóttir, and Stefan Wiemer

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Final revised paper (published on 04 Jun 2020)
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Preprint (discussion started on 11 Nov 2019)
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Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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RC1: 'General comments', Georgios Michas, 27 Dec 2019
- AC3: 'Reply to Dr. Georgios Michas (sorry for the replica)', Marco Broccardo, 24 Mar 2020
RC2: 'Review of manuscript by Julian Bommer', Julian Bommer, 13 Jan 2020
- AC2: 'Reply to Prof. Jullian Bommer', Marco Broccardo, 24 Mar 2020

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

ED: Publish subject to minor revisions (review by editor) (28 Mar 2020) by Filippos Vallianatos

AR by Marco Broccardo on behalf of the Authors (29 Mar 2020) Author's response Manuscript

ED: Publish as is (26 Apr 2020) by Filippos Vallianatos

AR by Marco Broccardo on behalf of the Authors (04 May 2020) Manuscript

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Short summary

This study presents a first-of-its-kind pre-drilling probabilistic induced seismic risk analysis for the Geldinganes (Iceland) deep-hydraulic stimulation. The results of the assessment indicate that the individual risk within a radius of 2 km around the injection point is below the safety limits. However, the analysis is affected by a large variability due to the presence of pre-drilling deep uncertainties. This suggests the need for online risk updating during the stimulation.