On May 27, 2010, the Pacaya volcano erupted. At approximately 20:00 hours there was a strong eruption ejecting debris and ash columns up to 1500 meters. Ash rained down in many Guatemalan cities to the northwest of the volcano, including Guatemala City forcing the authorities to close up the International Airport, La Aurora, in Guatemala City for several days. The tube by ITN News Chanel shown above visualizes the the magnitude of the eruptions. A week after the eruption the more than 2000 evacuated locals started to return home. The airport is now operating normally and tours to the Pacaya volcano are allowed again, though with the proper precautions.
More info about the Pacaya Volcano at Wikipedia.