This dataset contains passive seismic recordings taken in August/September 2026 at 10 locations forming a mini-array of ~1 km aperture in Saxon Lusatia (Germany) near the village of Oppitz. The measurements were part of the “Low Seismic Lab” project in collaboration with the DZA (German Centre for Astrophysics). The 10 three-component 4.5 Hz geophones remained in the field for ~17 days. The goal of this mini-array was to analyse the ambient seismic noise field, its characteristics, and directions. Raw data is provided in proprietary “Cube” format and standard miniSEED format. We also provide a stationXML file with station metadata.
This new seismicity catalog for the Northern Chile forearc region was created using a modern DL-based phase picker (EQTransformer) and a novel phase association algorithm (PyOcto). It contains a total of 2.2 million events, which is an order of magnitude more than previous catalogs of the region, and covers the years 2007-2023. Data from 196 temporary and permanent seismic stations was used to create the catalog. Events were relocated in a 2.5D velocity model that contains the high-velocity slab, then re-located with a double-difference approach using catalog travel-time differences. Although the overall completeness magnitude of the catalog was retrieved as 2.3, completeness estimates go down to 1.5 for events inside the network footprint in the years 2011-2016.