article_snippet.sent: (CNN)Chile's Calbuco volcano erupted twice in 24 hours, the country's National Geology and Mining Service said early Thursday.
article_snippet.sent: the country's National Geology and Mining Service said the country's National Geology and Mining Service was evaluating the spectacular nighttime eruption, but indicated the country's National Geology and Mining Service was "stronger than the first one.
article_snippet.sent: The first eruption on Wednesday set off a bit of a panic in the region.
article_snippet.sent: The first eruption is a first for many in the region.
article_snippet.sent: The first eruption was 1962.  
article_snippet.sent: There was a minor eruption in 1972.
article_snippet.sent: Calbuco also belched out a bit of gas and smoke in 1996.
article_snippet.sent: Alejandro Verges, regional director at the Ministry of Interior and Public Safety, said Thursday afternoon that officials are concerned there might be a third eruption.
highlights_snippet.sent: The last time Calbuco erupted was 1972 .