{"dcterms:modified":"2026-06-10","dcterms:creator":"Repositorio de datos de investigación de la Universidad de Chile","@type":"ore:ResourceMap","@id":"http://datos.uchile.cl/api/datasets/export?exporter=OAI_ORE&persistentId=https://doi.org/10.34691/FK2/91GHJE","ore:describes":{"citation:datasetContact":[{"citation:datasetContactName":"Pastén, Francisco","citation:datasetContactAffiliation":"Universidad de Chile","citation:datasetContactEmail":"fpasten012@gmail.com"},{"citation:datasetContactName":"Potin, Bertrand","citation:datasetContactAffiliation":"Universidad de Chile","citation:datasetContactEmail":"bertrand.potin@uchile.cl"},{"citation:datasetContactName":"Azúa, Kellen","citation:datasetContactAffiliation":"Universidad de Chile","citation:datasetContactEmail":"kellen.azua@uchile.cl"},{"citation:datasetContactName":"Ruiz, Sergio","citation:datasetContactAffiliation":"Universidad de Chile","citation:datasetContactEmail":"sruiz@uchile.cl"}],"citation:keyword":{"citation:keywordValue":"Sismicidad"},"citation:dsDescription":{"citation:dsDescriptionValue":"The subduction of different features such as oceanic ridges, fractures zones or seamounts are important for the accurate characterization of subduction zones. These structures may affect the along-dip variability of seismic behavior and eventually trigger slow earthquakes. Here we studied the along- dip influence of the Copiapó ridge subduction in the Atacama region, North-Central Chile, an area where seismic swarms, low coupling values and slow earthquakes have been reported. We built a seismic catalog including repeating earthquakes and non-volcanic tremors (NVT), and performed a 3-D tomography for P-wave velocity and Vp/Vs ratio. We identify along-dip segmentation involving 4 distinct segments: (1) a locked seismogenic zone (20 to 35 km depth), hosting ordinary clustered micro-seismicity and repeating earthquakes; (2) a transition zone (35 to 42 km) with non-volcanic tremor and low seismicity; (3) a zone (42 to 60 km) without seismicity and with slow-slip events and (4) a deep zone with more abundant seismicity. The velocity models show differences among these zones: while low velocity anomalies of Vp and Vs, and Vp/Vs ratio between 1.76 and 1.82 are observed in the deep zone, higher velocities are present in the other areas. These features indicate that SSE are located in a zone with higher pore fluid pressure. We propose that these geodynamic differences are generated by the subduction of heterogenic seamounts associated to the Copiapó ridge.","citation:dsDescriptionDate":"2019-08-01"},"author":{"citation:authorName":"Pastén, Francisco","citation:authorAffiliation":"Universidad de Chile","authorIdentifierScheme":"ORCID","authorIdentifier":"https://orcid.org/0000-0001-9318-0343"},"citation:notesText":"Se recomiendo utilizar el programa Generic Mapping Tool (GMT) para la visualización de los datos.","subject":"Earth and Environmental Sciences","dateOfDeposit":"2021-10-09","title":"Copiapó_Experiment_Catalogue","citation:depositor":"Pastén, Francisco","@id":"https://doi.org/10.34691/FK2/91GHJE","@type":["ore:Aggregation","schema:Dataset"],"schema:version":"2.0","schema:name":"Copiapó_Experiment_Catalogue","schema:dateModified":"Thu Jan 25 09:17:01 CLST 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