The Coming Crisis (excerpts):  Mount Nabro erupted in Eritrea, Africa, spewing ash 13 km (8 mi) into the air, causing some flights over East Africa to be cancelled.  The eruption is believed to have followed a string of earthquakes in the region.  Peggy Hellweg, a seismologist at the University of California, gave BBCs Network Africa programme some more information on the activity.  On June 13, 11, an ash cloud that had some influence on air travel was attributed to Dubbi.  However, more acc...

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