The Calbuco volcano in Santiago, Chile erupted again Thursday, sending dark bursts of ash and hot rock ballooning out 2.5 miles into the air and prompting Chilean officials to order a new evacuation of nearby residents.

The surrounding area was evacuated after the volcano first erupted last Wednesday afternoon, but many people had begun to return to their ash-drowned homes, the Associated Press reported.

“There are no words for having to live this over again — having our families worried about us, all phones collapsed,”  Horacio Camano told the Associated Press, after evacuating the town of Ensenada with his family.

The eruptions at Calbuco are the first in more than four decades. More than 4,500 people have been evacuated since the Calbuco roared back to life April 22, sending ash about 11 miles into the sky. Hours later, it produced a second outburst that turned the nighttime sky reddish orange.

“This latest eruption is much smaller than the other two,” Deputy Interior Minister Mahmud Aleuy said at a news conference, but he said 1,500 people were being evacuated as a precaution.

Still, the coming rain on Friday could lead to volcanic mud flows, known as lahars, which are capable of leveling anything in their path once in motion, Rodrigo Alvarez, director of the National Mining and Geology service told the Associated Press.

Volcano expert Moyra Gardeweg told the Associated Press that the wet weather also could mean acid rain that damages metal and plant life and pollutes water sources.