Helka is known for its extremely varied and hard to predict eruptions 
 Telegraph.co.uk (excerpts):  One of Iceland's most feared volcanoes looks ready to erupt, experts said on Wednesday, raising fears of a new ash cloud halting flights over Europe.  The Helka volcano is close to the ash-spewing Eyjafjallajokull, which last year caused the biggest closure of airspace shutdown since the Second World War, affecting more than 100,000 flights and eight million passengers.  "The movements around Helka have been unusual in the last two to three days," University of Iceland Geophysicist Pall Einarsson said.  While this might not necessarily mean an immediate blast, "the volcano is ready to erupt," he stressed.  "The mountain has been slowly expanding in the last few days because of magma buildup."  Another geophysicist, Ari Trausit Gudmundsson, also said the measurements around Helka were very "unusual" and that the volcano looked ready to blow.  "Something is going on," he said.  The volcano dubbed the "Gateway to Hell" by Icelanders in the Middle Ages, is one of the country's most active, having erupted some 20 times over the past millennium, most recently on February 26, 2000.  Helka, which is not far from Eyjafjoell and has gone off about once a decade over the past 50 years, is known for its extremely varied and hard to predict eruptions, with some lasting only a matter of days and others lasting months and even years.  Wednesday's news of a possible imminent eruption comes just over a month after the violent eruption at the Grimsvotin volcano in the southeast of the country.  That eruption subsided after less than a week, having spit out far more ash than Eyjafjoell, but due to more favorable winds for Europe, it caused far less air traffic disruption.  Asked what kind of disruptions could be expected if Helka erupts, Gudmundsson said the volcano tends to "produce both ash and lava within the first seconds of an eruption."  Lava eruptions are far less disruptive and "if the next eruption is of the same character (as the previous ones) it is unlikely that it will have any affect on flights in Europe," he said.  "Of course, this depends on the size of the eruption, which is something that is impossible to predict," he added.   Both of Iceland's latest eruptions provided warning signs several hours before, but Helka is known for having a very short fuse.  After Iceland's last two eruptions, geologists have warned that the country's volcanoes appeared to have entered a more active phase and that more eruptions could be expected, with Helka believed to be the first in line.  

My Comments:   Acts 2:19 "I will show wonders in heaven above and signs in the earth beneath, blood, fire and vapor of smoke."