Chilean and Argentine authorities declared a red alert and ordered the mandatory evacuation of a 25-km radius around the active Copahue volcano, which straddles the border between the two Andean ...

A cloud of ash billows from Puyehue volcano in southern Chile on June 5. The volcano erupted for the first time in half a century on June 4, prompting evacuations of 3,500 people as it sent a ...

Geochemist and associate professor in the Department of Geological Sciences and Engineering Philipp Ruprecht has been studying the Puyehue Cordón Caulle volcano in Chile for the past six years. How ...

The eruption of Puyehue-Cordón Caulle in Chile seen by EO-1 on August 18, 2011. Credit: NASA Earth Observatory. I get asked quite often if earthquakes can trigger volcanic eruptions. Usually this ...

Chile's Puyehue volcano has erupted for the first time in half a century, prompting evacuations and grounding flights across southern Chile and Argentina.

Puyehue volcano in Chile, erupting in this image a few years ago, is a breaktaking example of a... [+] volcanic lightning storm where an extraordinary number of strikes occurred in a relatively ...