Publication Date:
2019
Description:
〈p〉The permanent GNSS station located at the Everest Pyramid Laboratory of EvK2CNR recorded its position coordinates during the Gorkha (25〈sup〉th〈/sup〉 of April 2015) and Chennai zone (12th of May 2015) earthquakes at an interval of every 30". The data recorded for a period of three days before and after the earthquakes were analyzed and the movement pointed out the shifting of the GNSS station point from its original position every 30'. From an accurate analysis of the coordinates of the station determined with the help of scientific GNSS Bernese software, it is possible to detect the movements of the station during the seismic events.〈/p〉
〈p〉The shifts of the GNSS point were added up providing an integral function (called PIF – Pyramid Integral Function) that can be computed for each of the three components. Comparing them with the displacement record of the GURALP broadband seismic station (IO-EVN) of the OGS (Istituto Nazionale di Oceanografia e di Geofisica Sperimentale – OGS – Trieste), located at the Pyramid, it is possible to establish a correlation especially with the Vertical and North components, and the maxima of the PIF function coincide with the time of occurrence of the earthquakes.〈/p〉
Print ISSN:
0375-6440
Electronic ISSN:
2041-4927
Topics:
Geosciences
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