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The 2010 Icelandic Ash Cloud. Photo by David Karnå.

Top 10 Facts About The 2010 Icelandic Ash Cloud

The 2010 Icelandic ash cloud was caused by the eruption in 2010 of Eyjafjallajökull; an active volcano in southern Iceland.

The Eyjafjallajökull volcano is located in the East Volcanic Zone of Iceland.

Clusters of small earthquakes signalled the start of the 2010 Eyjafjallajökull eruption in January.

The intensity and frequency of the seismic activity had grown by early March of 2010 and glacier ice above the volcano was rapidly melted and evaporated by the lava’s heat.

Local rivers and streams swelled due to runoff from the volcano, which also caused farms to flood and roads to be damaged.

Volcanic ash and the eruption-related ash plume resulted which ended up being the main issue with the Eyjafjallajökull volcano.

The height of the ash plume, which was about 11,000 meters, enabled it to enter the stratosphere and be dispersed there by high-velocity jet streams.

The plume was driven southeast by winds and reached northern Europe after crossing the North Atlantic Ocean.

The ash presented a challenge to airplanes because of its extremely fine particle sizes.

It was believed that if the ash entered into the jet engines, it could interfere with a plethora of systems and, due to the heat of the jet engine, it could even change into a glassy substance with catastrophic consequences.

The top 10 facts about the 2010 Icelandic ash cloud include the following.

1. The Fine-grained Ash Was Carried Towards Mainland Europe

Mount Pinatubo Eruptions. Photo by NOAA/NGDC, R. Lapointe, U.S. Air Force.

The Eyjafjallajökull Volcanic eruption went into an explosive phase on April 14, 2010, and fine glass-rich ash was blasted up to a height of over 8 km (26,00 feet) into the stratosphere.

The second phase’s eruption was assessed to be a VEI 4 explosion, which was sizable but not by far the most potent one conceivable under volcanic parameters.

The Mount Pinatubo eruption in 1991 was classed as a 6, and the Mount St. Helens eruption in 1980 received a VEI rating of 5.

An eruption plume of extremely fine-grained ash of 5 to 10 kilometres in height was released by the Eyjafjallajökull volcano.

A 0.18 to 0.05 km3 of thick rock was assessed to be the amount of material that was erupted.

During the periods of the most extreme tephra fall, there was intense ash fallout in inhabited parts of south Iceland, resulting in complete darkness.

Winds from the west and the north sent the fine-grained ash to mainland Europe during most of the eruptions.

To read more about the Eyjafjallajökull volcano click here

2. Many European Countries Closed Their National Airspace and Grounded Flights

The Eyjafjallajökull Plume. Photo by DLR.

The glacier ice above the volcano was swiftly melted and turned to steam by the heat from the volcano’s lava.

Local rivers and streams swelled due to runoff from the volcano, which also caused farms to flood and roads to be damaged.

A cloud of steam and ash was blasted about 7 miles (11 kilometers) into the atmosphere by a succession of minor explosions that were sparked by expanding gases from the rapid evaporation of ice.

The plume was driven by winds to northern Europe by traveling southeast across the North Atlantic Ocean.

Many European nations restricted their national airspace and grounded flights for several days out of concern for the harm that flying over the ash cloud might cause to commercial aircraft and the potential loss of life.

To read more about volcanic plume click  this link

3. Ash Cloud Created The Highest Level of Air Travel Disruptions Since World War II

Swiss flight cancellations. Photo by Hansueli Krapf.

Large portions of Northern Europe were coated in ash from the volcanic explosion from April 14 to April 20.

It affected almost 10 million travelers when about 20 countries restricted their airspace to commercial airplane traffic.

From April 15 until April 20, 2010, the majority of the European Instrument Flight Rules airspace was closed as a result of the eruption’s second phase, which began on April 14.

The result was the biggest level of air travel disruption since the Second World War, with a very high percentage of flights within, to, and from Europe being canceled.

4. The Volcanic Ash Could Cause Airplane Crashes

Mt. Vesuvius eruption. Photo by Giorgio Sommer.

As it is carried by the prevailing winds, volcanic ash typically tends to spread over extraordinarily vast areas.

The ash particles in the air caused by the eruption of Mount Tambora in 1816 prevented most of Europe from enjoying the summer sun.

The risk that volcanic ash poses is directly correlated with one’s distance from the eruption.

Suffocation and deadly burn injuries are the major threats to those who are near a volcanic explosion.

It is what caused the Vesuvius eruption about 2000 years ago, which killed thousands of people.

Like volcanic ash from any other eruption, the ash from the Eyjafjallajökull volcano was not like the fluffy material you find in a fireplace after a fire has died.

Small fragments of volcanic glass, pebbles, and minerals made up its composition. The volcanic ash was brittle, insoluble in water, corrosive, and abrasive.

The ash could stop cooling systems from working, clog jet engines, and lead to crashes of aircraft.

The vision for visual navigation is decreased by smoke and ash during eruptions.

Tiny particles in the ash can damage aircraft turbine engines and cause them to shut down by sandblasting windscreens and melting in the heat.

Following the 14 April 2010 eruption, many flights within, to, and from Europe were canceled.

While no commercial aircraft were destroyed, some military aircraft’s engines did sustain damage. To read more about Mount Vesuvius click this link.

5. The Cooled Lava Created a Cloud of Highly Abrasive, Glass-rich Ash

Because the Eyjafjallajökull volcano lay right beneath the jet stream, its volcanic activity severely disrupted air traffic.

During the eruption’s second phase, the jet stream’s direction was consistently southeast, which was unusually stable.

Under 200 meters (660 feet) of glacial ice, the second eruptive phase took place.

Two distinct occurrences were produced when the ensuing meltwater returned to the volcano that was erupting.

The first was that the amount of rapidly vaporizing water increased dramatically the explosive power of the eruption.

The erupted lava then cooled very quickly, forming a highly abrasive, glass-rich plume of ash.

Ultimately, the volcano’s explosive force was sufficient to eject volcanic ash directly into the jet stream.

6. The Icelandic Ash Had A Huge Impact on Farming and Animals

Raufarfell. Photo by Alexander Grebenkov.

Compared to lava flows, samples of volcanic ash taken close to the eruption had a silica concentration of 58%.

With a mean value of 104 mg of fluoride per kg of ash, the concentration of water-soluble fluoride was one-third lower than the concentration typical in Hekla eruptions.

In this part of Iceland, farming is significant.

As high fluoride concentrations could have fatal renal and hepatic effects, particularly in sheep, farmers around the volcano were advised not to let their livestock drink from contaminated streams and water sources.

The Icelandic Food and Veterinary Authority asked all horse owners who keep their herds outside to be on the lookout for ash fall in a notice they issued on April 18, 2010.

All horses had to be kept indoors in areas where there was a large amount of ash fall.

It was incredibly difficult to continue cultivating land, harvesting crops, or grazing livestock due to the wet and compacted nature of the thick coating of ash that had fallen on some Icelandic pastures and farms at Raufarfell.

7. No Fatalities or Significant Health Issues Were Caused by The Ash

 The 2010 Eyjafjallajökull eruption was not associated with any documented human casualties.

Even though those who lived close to the volcano experienced significant levels of irritability symptoms, their lung function was normal.

When compared to a North Icelandic control group that had no ashfall six months later, the local inhabitants in the area had higher respiratory complaints.

The frequency of calls to health services in Scotland for eye and respiratory discomfort did not significantly increase.

8. The Volcanic Plume Created a Rare Weather Phenomenon

Mount Pinatubo Caldera. Photo by Lance Vanlewen.

Volcanic lightning, an uncommon weather occurrence, was produced at the crater’s entrance by the gases, ejecta, and volcanic plume.

Static electricity was produced as rocks and other ejecta collided with one another. This helped to create lightning together with the plentiful water-ice near the peak.

As of April 15, the eruption was not significant enough to affect global temperatures the way Mount Pinatubo and other significant previous volcanic eruptions did.

9. The Eruption Was Declared Officially Over in October 2010

The volcanic eruptions that began in March 2010 were viewed as a single eruption that occurred in stages.

In what is known as an effusive eruption, the first phase of the eruption spewed olivine basaltic andesite lava several hundred meters into the air.

In April 2010, there were disruptions over a six-day initial period.

Up until June 2010, eruptive activity persisted, and there was more localized disruption in May 2010.

When snow on the glacier did not melt after three months of inactivity, the eruption was officially declared to be over in October 2010.

10. Volcano Tourism Quickly Sprang Up in The Wake of The Eruption

Icelandic Police. Photo by OddurBen.

Following the eruption, “volcano tourism” immediately took off, with nearby tour operators providing day trips to observe the volcano.

A map was provided showing the restricted region surrounding Eyjafjallajökull, which the general public was prohibited from accessing. 

This was part of the regular reports about access to the area that the Civil Protection Department of the Icelandic Police prepared.

As part of routine safety precautions and to help in enforcing access limits, teams from the Icelandic Association for Search and Rescue were stationed at the eruption site.

Webcams that provide views of the eruption from Valahnúkur, Hvolsvöllur, and Þórólfsfell were erected by Vodafone and the Icelandic telecommunications company Míla.

A thermal imaging camera was also visible in the view of the eruption from Þórólfsfell.