INSIDE seismic monitoring: Methodology and results

The INSIDE project aims to improve the understanding of induced seismicity and ground deformation associated with geothermal operations in the South German Molasse Basin. The seismic monitoring network deployed in the frame of the project plays a crucial role in achieving this objective. This technical report focuses on the passive seismic monitoring efforts conducted in the southern Munich area, Germany, between March 2021 and January 2024.
This document details the equipment and the focus of the monitoring, specifically the geothermal activity in the southern Munich area around the ongoing Pullach and Schäftlarnstraße sites, as well as the future Baierbrunn project. The report presents a catalogue of seismic events detected between March 2021 and December 2023, comparing the findings with data from the Geophysical Observatory Fürstenfeldbruck (GOF). It analyses data quality, signal-to-noise ratios and develops on the accuracy of hypocenter determination. It focuses on different location methods (absolute and relative), tests the hypothesis underlying the development of the velocity models and develops on the influence of the seismic network geometry. ... mehrFinally, the report validates the simulated network capabilities from the observed catalogue.