CARACAS, Venezuela (AFP) — Venezuela's interim leader declared a state of emergency Wednesday as two massive earthquakes caused buildings in the capital to crumble and forced the closure of the country's main airport. Delcy Rodriguez said 20 aftershocks had followed the earthquakes of magnitude 7.2 and 7.5, which struck the same area of Venezuela, according to the United States Geological Survey (USGS). The quakes triggered panic in the capital and drove people into the streets, AFP journalists saw.