TY - JOUR AU - Cárdenas Cordovez, Rossy PY - 2021/12/31 Y2 - 2024/03/28 TI - Displacement of geodetic vertices due to the earthquake of February 27, 2010 from the regions of Maule to Los Lagos, Chile JF - Revista Geográfica de Chile Terra Australis JA - Rev. geogr. Chile, Terra Australis VL - 57 IS - 1 SE - Articles DO - 10.23854/07199562.2021571.Cardenas75 UR - https://www.revistaterraaustralis.cl/index.php/rgch/article/view/102 SP - 75-87 AB - <p>The present study address the displacement of geodetic vertices produced by the earthquake on February<br />27, 2010 in the central - southern Chile, with hypocenter in the sector of Concepción, covering data from the<br />regions of Maule to the Lakes. For this information was collected through GPS, GNSS and the fixed active<br />stations and passive stations of the geodetic vertices in a period of ten years from 2010 to 2020. From these<br />data the distance they had from their point of origin was determined.<br />In Chile the deformation is mainly due to the seismic cycle produced by the interaction between the tectonic<br />plates (Nazca, South American, Antarctic), this cycle is constituted by the period prior to the occurrence of<br />an earthquake, the displacement during the earthquake and post-relaxation. earthquake. To understand<br />these movements, we use Spacial geodesy, in which we obtain information from satellites; with this<br />information, the position of points on the earth's surface is determined through coordinates (latitude,<br />longitude, height) for the materialization of the geodetic network and thus form the geodetic vertices. With<br />these data it is possible to estimate the total displacement of the georeferenced points in the field during the<br />10 years of study.</p> ER -