![CHILE-VOLCANO-CABULCO Lightning illuminates a cloud of ash as lava spews from the Calbuco volcano in southern Chile](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-9.jpg?quality=85&w=2400)
By TIME Photo
Last week’s eruption of the Calbuco volcano in Chile was its first in more than four decades. Officials issued a red alert for a nearby city, Puerto Montt, and evacuated more than 1,500 people in a six-mile radius of the volcano—some 600 miles south of Santiago—as ash began to spew into the air.
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![CHILE-VOLCANO-CABULCO Lightning illuminates a cloud of ash as lava spews from the Calbuco volcano in southern Chile](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-9.jpg?quality=75&w=2400)
![Eruption of Chilean Calbuco volcano The sun illuminates ash from the Calbuco volcano](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-6.jpg?quality=75&w=2400)
![A boat is seen in a house backyard at Ensenada town which is covered with ashes from Calbuco volcano An ash-covered boat sits in the backyard of a home just north of the Calbuco volcano](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-5.jpg?quality=75&w=2400)
![Smoke and ash rise from the Calbuco volcano, seen from Puerto Varas city Ash rises from the Calbuco volcano, seen from Puerto Varas city, just miles north of the eruption](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-4.jpg?quality=75&w=2400)
![Calbuco Volcano erupted in the south of Chile A child's bicycle sits, covered in ash on the outskirts of Calbuco volcano, which after 40 years of inactivity, erupted](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-7.jpg?quality=75&w=2400)
![Smoke and ash rise from the Calbuco volcano, seen from Puerto Varas city Children from Puerto Varas look on as ash rises from the Calbuco volcano](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-3.jpg?quality=75&w=2400)
![Chile Volcano A man sweeps volcanic ash from the rooftop of his home in Puerto Varas, Chile](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-8.jpg?quality=75&w=2400)
![APTOPIX Chile Volcano Erupts The entrance of a house is covered in a thick layer of ash from the eruption of the Calbuco volcano in Chile](https://api.time.com/wp-content/uploads/2015/04/chile-volcano.jpg?quality=75&w=2400)
![CHILE-VOLCANO-CABULCO Lava and lightning illuminate a cloud of ash during an eruption of the Calbuco volcano](https://api.time.com/wp-content/uploads/2015/04/chile-volcano-10.jpg?quality=75&w=2400)
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