article_snippet.sent: (CNN)As ash from Chile's Calbuco Volcano spread east into Argentina, geologists warned of the potential for more activity Friday.
article_snippet.sent: Volcano has already erupted twice this week, spewing ash to a depth of about 23½ inches (60 centimeters) in some places, according to the Ministry of Interior and Public Safety.
article_snippet.sent: New advisories say airborne ash could reach an altitude of 12,000 feet.
article_snippet.sent: Calbuco erupted twice in 24 hours, the geological agency said early Thursday.
article_snippet.sent: Officials said that volcanic flows from Calbuco caused rising water levels in the Río Blanco.
article_snippet.sent: Calbuco also belched out a bit of gas and smoke in 1996.
highlights_snippet.sent: Volcano already has erupted twice this week .
  
highlights_snippet.sent: Volcano has spewed ash to a depth of about 23½ inches in some places, Chilean officials say .
  