Abstract
Astrogeodynamics is a growing activity in astronomical research. Observatorio Astronómico Félix Aguilar takes part of it by means of Photoelectric Astrolabe PA 2 observations from San Juan, Argentina.
Here we present a comparison between Instantaneous Latitude Variation and data published by IERS, for the period February 1992 to December 2002. The resulting curve has been obtained from observations of the Fundamental Stars Groups, computing weight values of Latitude Variation for each night, previously corrected for Pole Movement.
Finally we analyze the possibility of a relation between this curve and the occurrence of earthquakes of more than 5 magnitudes (Mercalli scale).