The importance of earthquake interactions for injection‐induced seismicity: Retrospective modeling of the Basel Enhanced Geothermal System

Flaminia Catalli; Antonio P. Rinaldi; Valentin Gischig; Massimo Nespoli; Stefan Wiemer

doi:10.1002/2016gl068932

journal article May 27, 2016

The importance of earthquake interactions for injection‐induced seismicity: Retrospective modeling of the Basel Enhanced Geothermal System

Flaminia Catalli Antonio P. Rinaldi Valentin Gischig Massimo Nespoli Stefan Wiemer

Geophysical Research Letters Vol. 43 No. 10 pp. 4992-4999 · American Geophysical Union (AGU)

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Abstract

AbstractWe explore the role of earthquake interactions during an injection‐induced seismic sequence. We propose a model, which considers both a transient pressure and static stress redistribution due to event interactions as triggering mechanisms. By calibrating the model against observations at the Enhanced Geothermal System of Basel, Switzerland, we are able to reproduce the time behavior of the seismicity rate. We observe that considering earthquake interactions in the modeling leads to a larger number of expected seismic events (24% more) if compared to a pressure‐induced seismicity only. The increase of the number of events is particularly evident after the end of the injection. We conclude that implementing a model for estimating the static stress changes due to mutual event interactions increases significantly the understanding of the process and the behavior of induced seismicity.

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Citations

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References

Details

Published: May 27, 2016
Vol/Issue: 43(10)
Pages: 4992-4999
License: View

Authors

F

Flaminia Catalli

GeoForschungsZentrum Potsdam, Telegrafenberg Potsdam Germany; Swiss Seismological Service Swiss Federal Institute of Technology, ETHZ Zürich Switzerland

A

Antonio P. Rinaldi

Swiss Seismological Service Swiss Federal Institute of Technology, ETHZ Zürich Switzerland

V

Valentin Gischig

Swiss Competence Center for Energy Research Supply of Electricity) Swiss Federal Institute of Technology, ETHZ Zürich Switzerland

M

Massimo Nespoli

Istituto Nazionale di Geofisica e Vulcanologia Bologna Italy

S

Stefan Wiemer

Swiss Seismological Service Swiss Federal Institute of Technology, ETHZ Zürich Switzerland

Funding

Swiss National Science Foundation Ambizione Energy Award: PZENP2_160555

Cite This Article

Flaminia Catalli, Antonio P. Rinaldi, Valentin Gischig, et al. (2016). The importance of earthquake interactions for injection‐induced seismicity: Retrospective modeling of the Basel Enhanced Geothermal System. Geophysical Research Letters, 43(10), 4992-4999. https://doi.org/10.1002/2016gl068932

The importance of earthquake interactions for injection‐induced seismicity: Retrospective modeling of the Basel Enhanced Geothermal System

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