On 04/23/15, Roger Nelson pondered and said...   
       
    RN> The Calbuco volcano in southern Chile erupted yesterday. Two blasts in   
    RN> 24 hours on April 22nd sent plumes of ash and sulfurous gas shooting at   
    RN> least 33,000 feet high. One of the eruptions occured at night and put on   
    RN> a spectacular display of rare and mysterious volcanic lightning.  Visit   
    RN> http://spaceweather.com for a picture of the lightning and a discussion   
    RN> of its underlying physics.   
      
   Hi Roger,   
      
   I saw footage of this on our nightly TV news bulletin, it was very   
   impressive. Chile is right to declare a state of emergency. Looks more like a   
   state of meltdown!   
      
   Best, Paul   
      
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