In April of the year 2021, an eruptive volcanic event was introduced in the Saint Vincent and the Grenadines Island by la Soufriére volcano, causing ingress of dioxide sulfur (SO_2) to nearby lands to this. The present work pretends to analyze the amount concentration that enters to the republic of Colombia in the department of Amazonia and Orinoquia regions according to a SO2 behavior before, during and after the event.