The Calbuco volcano erupts near Puerto Varas, Chile, Wednesday, April 22, 2015. The Calbuco volcano erupted Wednesday for the first time in more than 42 years, billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile. Authorities ordered the evacuation of the 1,500 inhabitants of the nearby town of Ensenada, along with residents of two smaller communities.(AP Photo/Diego Main/Aton Chile)
The Calbuco volcano erupts near Puerto Varas, Chile, Thursday, April 23, 2015. The volcano erupted Wednesday for the first time in more than 42 years, billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile, and is considered one of the top three most potentially dangerous among Chile's 90 active volcanos.(AP Photo/David Cortes Serey/ Agencia Uno)
The Calbuco volcano is seen erupting from Puerto Varas, Chile, Wednesday, April 22, 2015. The volcano erupted billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile. Authorities ordered the evacuation of the inhabitants of the nearby town of Ensenada, along with residents of two smaller communities. (AP Photo/Carlos F. Gutierrez)
Children watch the Calbuco volcano erupt, from Puerto Varas, Chile, Wednesday, April 22, 2015. The volcano erupted billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile. Authorities ordered the evacuation of the inhabitants of the nearby town of Ensenada, along with residents of two smaller communities. (AP Photo/Carlos F. Gutierrez)
ALTERNATE CROP - Children watch the Calbuco volcano erupt, from Puerto Varas, Chile, Wednesday, April 22, 2015. The volcano erupted billowing a huge ash cloud over a sparsely populated, mountainous area in southern Chile. Authorities ordered the evacuation of the inhabitants of the nearby town of Ensenada, along with residents of two smaller communities. (AP Photo/Carlos F. Gutierrez)