IPOC-Deep: a new seismicity catalog for Northern Chile

Description: 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.

Global identifier:

Doi(
    "10.5880/fidgeo.2026.050",
)

Tags: Seismizität ? Daten ? In Situ/Laboratory Instruments > Magnetic/Motion Sensors ? Northern Chile ? Science Keywords > EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > EARTHQUAKES ? Science Keywords > EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > EARTHQUAKE MAGNITUDE/INTENSITY ? Science Keywords > EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > EARTHQUAKE OCCURRENCES ? Science Keywords > EARTH SCIENCE > SOLID EARTH > TECTONICS > EARTHQUAKES > SEISMIC PROFILE ? Subduction Zone ?

License: Creative Commons Namensnennung 4.0

Language: Englisch/English

Organisations

• GFZ Data Services (Herausgeberschaft)
• GFZ Helmholtz-Zentrum für Geoforschung (Bereitstellung)

Persons

• Folesky, Jonas (Verfasser*in)
• Kasravi, Javad (Verfasser*in)
• Najafipour, Nooshin (Verfasser*in)
• Schurr, Bernd (Verfasser*in)
• Schurr, Bernd (Beitragende*r)
• Sippl, Christian (Verfasser*in)
• Sippl, Christian (Beitragende*r)

Issued: 2026-01-01

Last harvest: 14.05.2026 23:30

Status

Aktiv

Quality score

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