IPOC-Deep: a new seismicity catalog for Northern Chile

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.