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      <title>Sicilia Barocca by Paola Preto</title>
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      <description>aria acqua terra fuoco</description>
      <language>en-us</language>
      <pubDate>2017-03-16 20:03:08 UTC</pubDate>
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         <title>Etna: l&#39;esplosione dal cratere visto dallo Spazio, dieci feriti </title>
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         <description><![CDATA[<div>Dieci persone sono rimaste ferite dall'esplosione di uno dei crateri dell'Etna che è in attività. Sono stati colpiti da materiale lavico. Nessuno sarebbe in gravi condizioni. Soltanto sei saranno ricoverati negli ospedali di Catania e Acireale.<br><br></div><div>E' stato il contatto tra la lava incandescente della colata dell'Etna e la neve presente ad alta quota a provocare l'"esplosione freatica" a quota 2.700 metri del vulcano. Il materiale piroclastico lanciato lontano come schegge ha colpito degli escursionisti. Il fenomeno, conosciuto dagli esperti dell'Ingv di Catania, è avvenuto sul fronte della colata lavica, sul Belvedere dell'Etna, in territorio di Nicolosi.<br>L'esplosione freatica si verifica quando il magma riscalda terra provocando l'evaporazione quasi istantanea dell'acqua, con conseguente esplosione di vapore, acqua, cenere, roccia. A spiegarlo è il vulcanologo Stefano Branca dell'Ingv di Catania: l'esplosione "è avvenuta sul fronte della colata lavica attiva a 2700 metri di quota ed è stata causata dal rapido scioglimento della neve".<br><br></div>]]></description>
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         <pubDate>2017-03-16 20:19:20 UTC</pubDate>
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         <pubDate>2017-03-16 20:31:29 UTC</pubDate>
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         <pubDate>2017-03-16 20:34:16 UTC</pubDate>
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         <pubDate>2017-03-16 21:10:44 UTC</pubDate>
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         <title>VULCANI E TERREMOTI</title>
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         <pubDate>2017-03-18 15:24:18 UTC</pubDate>
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         <pubDate>2017-03-18 15:51:14 UTC</pubDate>
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         <pubDate>2017-03-18 17:01:46 UTC</pubDate>
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         <pubDate>2017-03-18 17:46:22 UTC</pubDate>
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         <title>http://vulcan.fis.uniroma3.it/italia/sicilia/etna/left_right.html</title>
         <author>proffPaola</author>
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         <pubDate>2017-03-20 19:44:46 UTC</pubDate>
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         <title></title>
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         <pubDate>2017-03-28 16:24:51 UTC</pubDate>
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         <pubDate>2017-03-29 13:37:42 UTC</pubDate>
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