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Chile's Calbuco volcano shoots out new eruption

A thick plume pours from the Calbuco volcano, near Puerto Varas, Chile, Thursday, April 30, 2015.  The olcano erupted again on Thursday, sending dark burst of ash and hot rock billowing into the air and prompting Chilean officials to order new evacuation of nearby residents. The eruptions at the Calbuco are the first in more than four decades. About 4,500 people have been evacuated since the Calbuco roared back to life on April 22, sending ash about 11 miles (18 kilometers) into the sky. (AP Photo/David Cortes Serey/ Agencia Uno) CHILE OUT - NO USAR EN CHILE

A thick plume pours from the Calbuco volcano, near Puerto Varas, Chile, Thursday, April 30, 2015. The olcano erupted again on Thursday, sending dark burst of ash and hot rock billowing into the air and prompting Chilean officials to order new evacuation of nearby residents. The eruptions at the Calbuco are the first in more than four decades. About 4,500 people have been evacuated since the Calbuco roared back to life on April 22, sending ash about 11 miles (18 kilometers) into the sky. (AP Photo/David Cortes Serey/ Agencia Uno) CHILE OUT - NO USAR EN CHILE  (The Associated Press)

The Calbuco volcano is erupting again following twin blasts last week that sent a vast ash cloud across parts of South America and forced the evacuation of residents along nearby towns.

The eruptions a the 6,500 foot (2,000-meter) Calbuco are the first in more than four decades.