Laguna del Desierto incident Laguna del Desierto region, the tribunal set the "hito 62" (cornerstone 62) at the O'Higgins/San Martin Lake and draw the boundary from there to mount Fitz Roy on the Martínez de Rozas Range awarding Chile the complete valley of Laguna del Desierto. In 1946 an aerial reconnaissance of the United States Air Force, ordered by the Chilean government, revealed that the lake emptied to the Atlantic shores. Chile and Argentina have to redraw its maps. The initially organized labour support for 1963 elected Argentine President Arturo Illia turned to antagonism during 1964, as secret plans for Juan Domingo Perón's return
Laguna del Maule (volcano) volcano-tectonic origin, with fluid flow inducing a subordinate amount of earthquakes; two intersecting lineaments on the southwest corner of the lake appear to be involved. The 2010 Maule earthquake, west of Laguna del Maule, did not affect the volcanic field, with the rate of uplift remaining unchanged, while other measurements indicate a change in the uplift rates at that point. Several reasons have been proposed for the inflation, including the movement of magma underground, the injection of new magma, or the action of volcanic gases and volatiles which are released by the magma. Another proposal is that the inflation may