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The Chilean GNSS Network: Current Status and Progress toward Early Warning Applications

2018; Seismological Society of America; Volume: 89; Issue: 4 Linguagem: Inglês

10.1785/0220180011

1938-2057

Juan Carlos Báez, Felipe Leyton, Claudia Troncoso-Pantoja, Francisco del Campo, Michael Bevis, C. Vigny, Marcos Moreno, M. Simons, Eric Kendrick, H. Parra, F. Blume,

earthquake and tectonic studies

Research Article| April 18, 2018 The Chilean GNSS Network: Current Status and Progress toward Early Warning Applications J. C. Báez; J. C. Báez aCentro Sismológico Nacional, Universidad de Chile, Blanco Encalada 2002, Santiago CP 8370449, Chile, jcbaez@csn.uchile.cl, leyton@csn.uchile.cl, ctroncoso@csn.uchile.cl, fdelcampo@csn.uchile.cl Search for other works by this author on: GSW Google Scholar F. Leyton; F. Leyton aCentro Sismológico Nacional, Universidad de Chile, Blanco Encalada 2002, Santiago CP 8370449, Chile, jcbaez@csn.uchile.cl, leyton@csn.uchile.cl, ctroncoso@csn.uchile.cl, fdelcampo@csn.uchile.cl Search for other works by this author on: GSW Google Scholar C. Troncoso; C. Troncoso aCentro Sismológico Nacional, Universidad de Chile, Blanco Encalada 2002, Santiago CP 8370449, Chile, jcbaez@csn.uchile.cl, leyton@csn.uchile.cl, ctroncoso@csn.uchile.cl, fdelcampo@csn.uchile.clhAlso at Universidad Tecnológica de Chile INACAP, Avenida Vitacura 10.151, Santiago CP 8370449, Chile. Search for other works by this author on: GSW Google Scholar F. del Campo; F. del Campo aCentro Sismológico Nacional, Universidad de Chile, Blanco Encalada 2002, Santiago CP 8370449, Chile, jcbaez@csn.uchile.cl, leyton@csn.uchile.cl, ctroncoso@csn.uchile.cl, fdelcampo@csn.uchile.cl Search for other works by this author on: GSW Google Scholar M. Bevis; M. Bevis bDivision of Geodetic Sciences, Ohio State University, 125 S. Oval Mall 275 Mendenhall Lab, Columbus, Ohio 43210 U.S.A., mbevis@osu.edu, kendrick.42@osu.edu Search for other works by this author on: GSW Google Scholar C. Vigny; C. Vigny cLaboratoire de Géologie, Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris, CEDEX 05, France, vigny@geologie.ens.fr Search for other works by this author on: GSW Google Scholar M. Moreno; M. Moreno dGFZ Helmholtz Centre Potsdam, Telegrafenberg, 14473 Potsdam, Germany, marcos@gfz-potsdam.deiAlso at Departamento de Geofísica, Facultad de Ciencias Físicas y Matemáticas, University of Concepción, Víctor Lamas 1290, 4070386 Concepción, Chile. Search for other works by this author on: GSW Google Scholar M. Simons; M. Simons eSeismological Laboratory, 252‐21 Caltech, Pasadena, California 91125 U.S.A., simons@caltech.edu Search for other works by this author on: GSW Google Scholar E. Kendrick; E. Kendrick bDivision of Geodetic Sciences, Ohio State University, 125 S. Oval Mall 275 Mendenhall Lab, Columbus, Ohio 43210 U.S.A., mbevis@osu.edu, kendrick.42@osu.edu Search for other works by this author on: GSW Google Scholar H. Parra; H. Parra fInstituto Geográfico Militar, Avenida Santa Isabel 1651, Santiago CP 8331014, Chile, sirgas@igm.cl Search for other works by this author on: GSW Google Scholar F. Blume F. Blume gUNAVCO, 6350 Nautilus Drive, Boulder, Colorado 80301 U.S.A., blume@unavco.org Search for other works by this author on: GSW Google Scholar Seismological Research Letters (2018) 89 (4): 1546–1554. https://doi.org/10.1785/0220180011 Article history first online: 18 Apr 2018 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Tools Icon Tools Get Permissions Search Site Citation J. C. Báez, F. Leyton, C. Troncoso, F. del Campo, M. Bevis, C. Vigny, M. Moreno, M. Simons, E. Kendrick, H. Parra, F. Blume; The Chilean GNSS Network: Current Status and Progress toward Early Warning Applications. Seismological Research Letters 2018;; 89 (4): 1546–1554. doi: https://doi.org/10.1785/0220180011 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search nav search search input Search input auto suggest search filter All ContentBy SocietySeismological Research Letters Search Advanced Search ABSTRACT Chile is one of the world's most seismically active regions and is therefore extensively studied by the earthquake sciences. The great length of the country hosts a variety of measurement systems allowing for the characterization of earthquake processes over a wide range of timescales and in different phases of the seismic cycle. Starting in the early 1990s, several research groups began to deploy continuously operating geodetic networks in Chile, forming the core of the modern network of Global Navigation Satellite Systems (GNSS) receivers used to monitor geodynamics from the southern tip of the Americas to the central Andes. Today, the Centro Sismológico Nacional (CSN) of the Universidad de Chile maintains and improves this network, increasing its coverage and spatial density while greatly reducing solution latency. We present the status of the GNSS network, its data streams, and the real‐time analysis system used to support real‐time modeling of earthquakes. The system takes 2 s, on average, to collect raw data, estimate positions, and stream results. Such low latency is essential to enabling early warning of earthquakes and tsunamis in Chile. You do not currently have access to this article.