On 14 February 2014, major tourist attractions in Yogyakarta and Central Java, including Borobudur, Prambanan and Ratu Boko, were closed to visitors, after being severely affected by the volcanic ash from the eruption of Kelud volcano in East Java, located around 200 kilometers east from Yogyakarta. Workers covered the iconic stupas and statues of Borobudur temple to protect the structure from volcanic ash. The Kelud volcano erupted on 13 February 2014 with an explosion heard as far away as Yogyakarta.