Residents in western Colombia woke to find their cities and towns covered in volcanic ash Wednesday, May 29, after an area volcano with a deadly past began spewing an ash cloud as high as 1,000 meters (3,280 feet) into the atmosphere.  Local authorities raised the alert for Colombia's Nevado del Ruiz from yellow to orange, indicating an eruption was likely in the coming days or weeks, though not imminent.  When the volcano erupted suddenly on November 13, 1985, at least 23,000 people were kil...
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