The Calbuco volcano erupts near Puerto Varas, Chile, April 23, 2015.

Smoke and ash rise from the Calbuco volcano as seen from the city of Puerto Montt, Chile, April 22, 2015.

A view from Puerto Montt, southern Chile, of a high column of ash and lava spewing from the Calbuco volcano, April 22, 2015.

Smoke and lava spew from the Calbuco volcano, as seen from the shores of Lake Llanquihue in Puerto Varas, Chile, April 23, 2015.

Smoke and ash rise from the Calbuco volcano as seen from the city of Puerto Montt, April 22, 2015.

The Calbuco volcano erupts near Puerto Varas, Chile, April 22, 2015.

The Calbuco volcano is seen erupting from Puerto Varas, Chile, April 22, 2015.