{"@context":"http://schema.org","@type":"Dataset","@id":"https://doi.org/10.34691/FK2/91GHJE","identifier":"https://doi.org/10.34691/FK2/91GHJE","name":"Copiapó_Experiment_Catalogue","creator":[{"@type":"Person","givenName":"Francisco","familyName":"Pastén","affiliation":{"@type":"Organization","name":"Universidad de Chile"},"name":"Pastén, Francisco"}],"author":[{"@type":"Person","givenName":"Francisco","familyName":"Pastén","affiliation":{"@type":"Organization","name":"Universidad de Chile"},"name":"Pastén, Francisco"}],"datePublished":"2022-01-20","dateModified":"2023-04-21","version":"2","description":"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.","keywords":["Ciencias de la tierra y el medioambiente","Sismicidad"],"license":"http://creativecommons.org/licenses/by/4.0","includedInDataCatalog":{"@type":"DataCatalog","name":"Repositorio de datos de investigación de la Universidad de Chile","url":"http://datos.uchile.cl"},"publisher":{"@type":"Organization","name":"Repositorio de datos de investigación de la Universidad de Chile"},"provider":{"@type":"Organization","name":"Repositorio de datos de investigación de la Universidad de Chile"},"distribution":[{"@type":"DataDownload","name":"Cluster_Similar_Events_Catalog.txt","encodingFormat":"text/plain","contentSize":2845,"@id":"https://doi.org/10.34691/FK2/91GHJE/8RWJI8","identifier":"https://doi.org/10.34691/FK2/91GHJE/8RWJI8","contentUrl":"http://datos.uchile.cl/api/access/datafile/496"},{"@type":"DataDownload","name":"Copiapo_Experiement_catalogue.txt.txt","encodingFormat":"text/plain","contentSize":196833,"@id":"https://doi.org/10.34691/FK2/91GHJE/VP1UYB","identifier":"https://doi.org/10.34691/FK2/91GHJE/VP1UYB","contentUrl":"http://datos.uchile.cl/api/access/datafile/494"},{"@type":"DataDownload","name":"data_Copiapo_autoPicks.insl","encodingFormat":"application/octet-stream","contentSize":1477542,"@id":"https://doi.org/10.34691/FK2/91GHJE/WJ33KK","identifier":"https://doi.org/10.34691/FK2/91GHJE/WJ33KK","contentUrl":"http://datos.uchile.cl/api/access/datafile/492"},{"@type":"DataDownload","name":"data_Copiapo_manuPicks.insl","encodingFormat":"application/octet-stream","contentSize":1203256,"@id":"https://doi.org/10.34691/FK2/91GHJE/H9RTQO","identifier":"https://doi.org/10.34691/FK2/91GHJE/H9RTQO","contentUrl":"http://datos.uchile.cl/api/access/datafile/491"},{"@type":"DataDownload","name":"NVTs.tab","encodingFormat":"text/tab-separated-values","contentSize":14140,"@id":"https://doi.org/10.34691/UCHILE/6HTLNX/CJTCOO","identifier":"https://doi.org/10.34691/UCHILE/6HTLNX/CJTCOO","contentUrl":"http://datos.uchile.cl/api/access/datafile/497"},{"@type":"DataDownload","name":"NVTs_Catalog.txt","encodingFormat":"text/plain","contentSize":1091,"@id":"https://doi.org/10.34691/FK2/91GHJE/HLS5QU","identifier":"https://doi.org/10.34691/FK2/91GHJE/HLS5QU","contentUrl":"http://datos.uchile.cl/api/access/datafile/495"},{"@type":"DataDownload","name":"stations_Copiapo.sta","encodingFormat":"application/octet-stream","contentSize":1195,"@id":"https://doi.org/10.34691/FK2/91GHJE/EIPNEX","identifier":"https://doi.org/10.34691/FK2/91GHJE/EIPNEX","contentUrl":"http://datos.uchile.cl/api/access/datafile/493"}]}