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- Installation of 29 short-period seismometers between Copiapo and Taltal to monitor seismic events - The deployment was between February 2023 and June 2023 - Registering continuously 250 SPS - Onshore component of research cruise SO297 with RV Sonne. Waveform data is available from the GEOFON data centre, under network code 5R.
The Bohemian Massif (500-250 Ma), the easternmost part of the Variscan orogenic belt, is one of the largest stable outcrops of pre-Permian rocks in Central and Western Europe. This region has persistent geodynamic activity that is clearly linked to upper mantle, and offers a globally unique location for studying intra-continental earthquake swarm (ES) seismicity in combination with deep crust and mantle degassing as well as their interaction with the deep biosphere. The main questions regarding seismicity, microbial life and origin, and heat flow are all linked by the common questions of fluid flow, pathways, and composition. The ICDP project 'Drilling the Eger Rift' aims to develop the most modern, comprehensive laboratory at depth worldwide for the study of ES, crustal fluid flow, mantle-derived CO2 and He degassing, and processes of the deep biosphere. In order to reach a new level of high-frequency, near source, and multi-parameter observation of ES and related phenomena, such a laboratory will comprise of a high-frequency 3D seismic array with a set of four shallow boreholes, combined with modern continuous real-time fluid monitoring at depth (the shallow boreholes) and the study of deep biosphere. Waveform data is available from the GEOFON data centre, under network code 1D.
Our group aims to identify evidence of undetected magmatic activity through the identification of microseismic events. We focus on the western Saronic Gulf region within the Aegean Sea. Since 2019, the National Observatory of Athens and the University of Patras have operated six seismic stations on Methana and the nearby Peloponnese mainland.In March 2024, our group deployed an additional 15 remote recording stations from the Geophysical Instrument Pool of GFZ Potsdam across Methana, Aegina, Agistri islands, and the mainland Peloponnese. We use MARK L-4C-3D seismometers in combination with DATA-CUBE3 data loggers equipped with external batteries. This project is part of the MULTI-MAREX initiative funded by the German Federal Ministry of Education and Research (BMBF). Waveform data is available from the GEOFON data centre, under network code 1A.
Seismological experiment at Strokkur from 2020" is a seismological experiment realized at the most active geyser on Iceland by Eva Eibl (University of Potsdam) in collaboration with Gylfi P. Hersir formerly at ISOR Iceland. The geyser is part of the Haukadalur geothermal area in south Iceland, which contains numerous geothermal anomalies, hot springs, and basins (Walter et al., 2018). Strokkur is a pool geyser and has a silica sinter edifice with a water basin on top, which is about 12m in diameter with a central tube of more than 20m depth. The aim of the seismic experiment is to monitor eruptions of Strokkur geyser from March 2020 using three broadband seismic stations (Nanometrics Trillium Compact 120s). Sensors were buried at distances of 38.8m (GE4, SE), 47.3m (GE3, SW), and 42.5m (GE2, N) from Strokkur center. Within this time period about 1 month of data is missing due to power outages. At any other times at least one station recorded the eruptions. From this dataset, converted to MSEED using Pyrocko, currently a catalogue of 506,131 water fountains was determined and further investigated in Eibl et al. (2025). In addition, Eibl et al. (2025) assessed the effect of the weather on the system including the bubble trap suspected at around 24 m depth by Eibl et al. (2021). Waveform data are available from the GEOFON data centre, under network code 2Z.
Station Explorer is a web application for exploring and accessing seismic station data from the federated data centres of the European Integrated Data Archives. It provides researchers, seismologists, and data analysts with an intuitive interface to discover, analyze, and download seismic data from multiple networks. The application features both station-based and event-based data exploration capabilities, with real-time data fetching and interactive visualizations. It is able to present quality metrics obtained from existing data centre web services.
A network of 209 continuously running digital seismic stations equipped with short-period geophones (200 stations) and broadband sensors (9 stations) was deployed in an area of ~14 x ~14 km in the Lausitz (Saxony, Germany) for a period of ~5 weeks. The main objectives were 1) to create a 3-D model of the subsurface (shear wave velocity; ambient noise tomography) using the ambient seismic noise field and 2) to investigate the spatio-temporal distribution of the seismic noise (and noise sources). The project is related to the preparations for the construction of a ‘Low Seismic Lab’ (as part of the German Center for Astrophysics, DZA) and potentially the Einstein Telescope. Waveform data is available from the GEOFON data centre, under network code 9I.
Temporary stations of the Goethe University Frankfurt as contribution to the virtual network _EIFELLNX. Waveform data is available from the GEOFON data centre, under network code 6X.
This network of sixteen geophones and six broadbands was installed in Kåfjord, Troms og Finnmark, Norway, to study two rockslides: Njárgavárri and Indre Nordneset. Each study site had three broadbands from September 2023 to June 2025. In addition, were installed and recording: September – November 2023: six geophones on each site; April – August 2024: four geophones at Njárgavárri and ten at Indre Nordneset. The geophones were installed locally around the rockslides while the broadbands were installed one to a few kilometers from the rockslides (except for one of them directly at Indre Nordneset). The geophones in Njárgavárri were first installed as two triangular antennas of four stations each (three in triangle and one in the middle) and were then replaced by a small aperture array around the most active part of the unstable slope. The goal was to record all activities: rock falls, cracking and creeping movements. In Indre Nordneset, the geophone stations were placed in a small aperture array all around the main scarp and surface of failure to record the cracking activity. The geophones are of type 3-D Geophone PE-6/B with DATA-CUBE3 (built-in GPS). The broadbands are of type STS-2.5 with EDR-10 digitizers. Sampling frequency was 400 Hz for geophone stations, 200 Hz broadbands. Gain was at 16 (15.258789 nV/count) for the geophone stations, set on high (100 nV/bit) for the broadband stations. Waveform data is available from the GEOFON data centre, under network code 8I.
Deployment of 10 seismometers for monitoring the induced seismicity of the Lacq gas field, France. This project focus on the analysis of the seismicity induced by anthropogenic activities (gas extraction and wastewater injection) related to the gas field, located in Lacq, France. We aim to answer the following questions: which part of the Lacq induced seismicity is generated by wastewater injection? by the mechanical evolution of the reservoir depletion? Is the seismicity confined to the (minor) faults of the reservoir or can regional tectonic faults be activated, generating large earthquakes? What scenarios of ground shaking and damages could be expected in case of a major event in the area? What is the associated seismic hazard and risk?
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