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Iceland’s volcanic eruption is the longest in half a century

The first lava began to erupt from a rift near Mount Fagradalsfjal on the evening of March 19 on the Reykjavik Peninsula, southwest of Reykjavik.

The volcanic eruption, which now attracts spectators near Reykjavik, first began on Sunday in six months, making it the longest volcano Iceland has witnessed for over 50 years.


first time lava On the evening of March 19, it began to erupt from a crevice near Mount Fagradalsfjal on the Reykjavik Peninsula, southwest of Reykjavik.

According to the Icelandic Tourism Board, subsequent sights have become major tourist attractions, from slow lava to dramatic geyser-like rocks and stones, with 300,000 tourists so far. A customer visited.

Iceland’s sixth volcanic eruption It is already 20 years longer than the previous year at Holfraun in the central eastern part of the island, which lasted from the end of August 2014 to the end of February 2015.

“Six months is a fairly long eruption,” volcanologist Thorvaldur Thordarson told AFP.

The lava field formed this time was named “Fagradal Schlaun”, translated as “Beautiful Lava Valley”, and named after the nearby Mount Fagradal Sfjal.

So far, about 143 million cubic meters of lava has erupted.

However, it is actually relatively small, equivalent to just under a tenth of the Holfraun eruption that erupted Iceland’s largest basalt lava flow in 230 years.

Iceland's sixth volcanic eruption in 20 years is already longer than its predecessor at Holfraun in the eastern central part.

Iceland’s sixth volcanic eruption in 20 years is already longer than its predecessor at Holfraun in the central eastern part of the island.

Halldor Geirsson, a geophysicist at the Institute of Earth Sciences, said the recent eruption “is special and very powerful in the sense that it maintains a relatively stable outflow.”

“The normal behavior we know from Icelandic volcanoes is that they really start to be active, pour out lava, and then diminish over time until the outflow stops,” he said.

The longest eruption in Iceland’s history occurred more than 50 years ago on Surtsey, just off the south coast, lasting almost four years from November 1963 to June 1967.

I can’t see the end

After nine days of calming, the lava reappeared in Fagradal Schlaun in early September, occasionally spewing bright red from the crater and a powerful smoke eruption.

It also accumulated in fiery tunnels underneath the solidified surface, forming pockets and eventually giving way and spreading to the shore like waves.

According to the Icelandic Tourism Board, the eruption has become a major tourist attraction and has been visited by 300,000 visitors so far.

According to the Icelandic Tourism Board, the eruption has become a major tourist attraction and has been visited by 300,000 visitors so far.

With the first counter installed five days after the eruption, the actual number of visitors is estimated to exceed 300,000.

In the first month, 10 cracks opened and 7 small craters were formed, but only 2 of them are still visible.

According to the Institute of Earth Sciences, only one crater is still active, measuring 334 meters (1,100 feet), just tens of meters before the highest peaks in the surrounding area.

Nevertheless, the volcano shows no immediate signs of decline.

“It seems that there is still enough magma from any reservoir. eruption I’m tapping. So it can last for a long time. ”


Icelandic volcano unleashes a third lava flow


© 2021 AFP

Quote: Iceland’s volcanic eruption is the longest in half a century (September 18, 2021), September 18, 2021 https://phys.org/news/2021-09-iceland-volcanic-eruption-longest- Obtained from century.html.

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Iceland’s volcanic eruption is the longest in half a century

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