Earthquakes Hit Katla

13.08.2012 | 12:16

מתוך אתר

http://www.icelandreview.com

Earthquakes Hit Katla Volcano in South Iceland

 

An earthquake of the magnitude 2.7 hit just north of Goðabunga in Mýrdalsjökull glacier, which covers the volcano Katla in South Iceland, around 8:30 am yesterday morning. It was part of a swarm of minor earthquakes. The second-largest had a magnitude of 1.8.

Mýrdalsjökull. Photo by Geir Ólafsson.

 

The Katla area has been rather quiet in the past weeks. There was more activity in the area in the spring when two small glacier outbursts flooded the river Leirá in Kötlukriki and Emstrur, to the west of Mýrdalsjökull, ruv.is reports.

The seismic activity then subsided and GPS monitors showed decreasing tension in the lithosphere.

Yesterday’s quakes were not connected with any volcanic activity and there has not been any increased flow in glacial rivers originating in Mýrdalsjökull.

However, glacial water in the vicinity has smelled of sulfur, according to geophysicist Benedikt Ófeigsson at the Icelandic Meteorological Office, such as in the river Jökulsá at Sólheimasandur and Leirá in Kötlukriki.

Katla has been monitored closely by scientists since a major glacial outburst, possibly caused by a minor volcanic eruption underneath Mýrdalsjökull, tore a hole in the Ring Road in South Iceland in July 2011.

Click here to read more about seismic activity in Katla and download the free IR Street Edition for a thorough report on the volcano.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל,והמשמש כמומחה באתר http://www.gotravel.co.il/.

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Earthquake in Northeast Iceland

24.07.2012 | 11:36

מתוך אתר http://www.icelandreview.com

Earthquake Swarm in Northeast Iceland

 

A series of minor earthquakes, the largest with a magnitude of 3.7, hit 27-33 kilometers east-southeast of Grímsey, Iceland’s northernmost inhabited island, shortly after 7:45 pm yesterday. Most of the other quakes were around a magnitude of two.

Grímsey. Photo by Páll Stefánsson.

 

Einar Kjartansson, geophysicist at the Icelandic Meteorological Office, told Morgunblaðið that earthquakes of this magnitude hit the region around Grímsey at one to two month intervals.

The earthquake swarm was not out of the ordinary and even though islanders may have felt the strongest earthquake, they were hardly alarmed, Einar said—people are used to the ground trembling in Grímsey.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל,והמשמש כמומחה באתר http://www.gotravel.co.il/.

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Katla Volcano Shaking

18.07.2012 | 00:00

מתוך אתר http://www.icelandreview.com/

 

Katla Volcano Shaking, Geologist Says

 

During the volcanic eruption in Eyjafjallajökull in 2010, an eruption that closed the airspace of Europe, many talked about the bigger and more active volcano, Katla, which is thought to be due to erupt at any moment. However, it has been due to erupt for almost fifty years. The latest Katla eruption in 1918 caused considerable damage and the volcano is feared wide and far.

Katla erupts in 1918

 

The famous Icelandic volcanologist Haraldur Sigurdsson notes in his blog on July 17 that small earthquakes in Katla volcano have been frequent in both 2012 and 2011. In the accompanying graph you can see the number of earthquakes each year from 1991 to 2012. The situation is clearly not normal since the peak is in 2012.

 

Katla quakes 1991-2012

Source: Haraldur Sigurdsson.

 

Haraldur asks whether these are ice-quakes formed by movement and melting of the glacier, or quakes in the crust of the earth, connected to the volcano itself. He draws the conclusion from observing quakes in Godabunga, west of Katla, that it is unlikely that the quakes are related to melting of ice due to the glacier. Hence, he says that possibly the quakes are related to geothermal heat under the ice. Haraldur Sigurdsson concludes by saying that Katla continues to cause nervousness among all.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל,והמשמש כמומחה באתר http://www.gotravel.co.il/.

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Earthquake in South Iceland

08.07.2012 | 14:56

 

מתוך אתר http://www.icelandreview.com/

 

Earthquake in South Iceland

 

An earthquake of the magnitude 3,1 occurred at Ingólfsfjall near Hveragerði in south Iceland at 12:20 today, according to the Icelandic Meteorological Office. Several aftershocks have followed.

From Hveragerði. Photo by Geir Ólafsson.

 

Seismic activity has been detected in the area over the last three weeks. The number of earthquakes has increased but most of them have been very small, or a maximum of 1,0 in magnitude, mbl.is reports.

The earthquake was felt in the towns of Hveragerði and Selfoss, as well as surrounding areas. No damage has been reported.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל,והמשמש כמומחה באתר http://www.gotravel.co.il/.

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Foreign Reporters Enter Icelandic Volcano

01.07.2012 | 15:30

מתוך אתר http://www.icelandreview.com/icelandreview

Foreign Reporters Enter Icelandic Volcano

Up to 40 foreign journalists and five foreign television channels have entered the volcanic crater Þríhnúkagígur in southwest Iceland in recent weeks. Managing director of Inside the Volcano Björn Ólafsson calls the crater a “diamond in the rough”.

Inside Þríhnúkagígur. From the photo gallery on the website of Inside the Volcano.

Björn believes Þríhnúkagígur has the potential to become as big an attraction as the Blue Lagoon. His company started lowering travelers into the crater two weeks ago and Björn said foreign journalists have taken a keen interest in it, ruv.is reports.

Currently, only a limited number of people can enter the crater at the same time. However, there are ideas of drilling a tunnel into the crater for tourism purposes.

Click here to read more about these plans and here to read the coverage of sueddeutsche.de (in German) about a trip to the “Fiery Mountain’s Belly”.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל,והמשמש כמומחה באתר http://www.gotravel.co.il/.

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Earthquake Hits Island in North Of Iceland

23.06.2012 | 00:00

מתוך אתר http://www.icelandreview.com/

Earthquake Hits Island North Of Iceland

An earthquake of the magnitude 3.2 points was picked up by sensors southeast of Kolbeinsey, a small uninhabited island north of Iceland that marks the country’s territorial waters, at 11:11 am on Thursday.

View from Tjörnes. However, the island on the picture is Lundey. Photo by Páll Stefánsson.

According to the Icelandic Metrological Office, some aftershocks followed, but they were all significantly smaller, Morgunblaðið reports.

Seismic activity is very common in this area as it lies on the borders of the Eurasian and North American continental plates north of Tjörnes peninsula. No one reported to have noticed the earthquake on the Icelandic mainland.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל,והמשמש כמומחה באתר http://www.gotravel.co.il/.

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Seismic Activity in Katla

21.06.2012 | 11:00

מתוך אתר http://www.icelandreview.com

Increased Seismic Activity in Iceland’s Katla Volcano

 

Increased seismic activity was detected in Mýrdalsjökull glacier in south Iceland, under which the volcano Katla lies, last night. Twenty-six minor earthquakes were picked up by sensors, all of which had their epicenter within the Katla crater.

Mýrdalsjökull. Photo: Páll Stefánsson.

A seismic activity expert on watch at the Icelandic Meteorological Office informed ruv.is that the earthquake swarm had started at 1 am and continued through 5 am.

However, there is no reason to be concerned about an imminent volcanic eruption or glacial outburst in Katla. The earthquakes were all shallow and originated in seismic activity in the geothermal system.

Click here to read about another recent earthquake swarm in Katla.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל והמשמש כמומחה באתר http://www.gotravel.co.il/ וגם באתר http://www.briza.co.il/ לפניות לכותב shark4162@gmail.com

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Grímsvötn Volcanic Eruption Causes Glacial Melt

12.06.2012 | 06:00

מתוך אתר http://www.icelandreview.com

Grímsvötn Volcanic Eruption Causes Glacial Melt

 

Geophysics professor Magnús Tumi Guðmundsson said there are still consequences from the May 2011 eruption in Grímsvötn, a sub-glacial volcano in Vatnajökull in southeast Iceland, including more rapid melting of the icecap.

Grímsvötn. Archive photo by Páll Stefánsson.

There is a 45°C (113°F) hot lagoon on the glacier’s surface, an uplifting by three centimeters has occurred as the icecap decreases and the water surface of glacial rivers continues to rise, Morgunblaðið reports.

“We assume that significant melt will occur in the western Vatnajökull this summer,” predicted Magnús Tumi, who recently returned from a research expedition to Grímsvötn on behalf of the Glacial Research Association.

During the expedition, researchers sailed on the lagoon in Grímsvötn. “It is remarkable because it’s very hot. In the crater there was a little stream with 45°C warm water. A few hundred meters wide part of the lagoon was at bathing temperature, 25-40°C.”

“The eastern part of the lagoon is considerably colder, yet lukewarm, which is noteworthy given that it is surrounded by a wall of ice,” Magnús Tumi continued. The high temperature is a leftover from the eruption last year.

And the ash fall continues. During dry and windy conditions, ash will blow across south Iceland this summer and even longer.

Large drifts of ash have accumulated by the Ring Road in south Iceland. Drivers are asked to be careful because the ash might blows across the road and block visibility, Fréttablaðið reports.

Click here to read more about the expedition to Grímsvötn

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל והמשמש כמומחה באתר http://www.gotravel.co.il/ וגם באתר http://www.briza.co.il/ לפניות לכותב shark4162@gmail.com

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Eruption Causes Glacial Melt

12.06.2012 | 06:00

מתוך אתר http://www.icelandreview.com

Grímsvötn Volcanic Eruption Causes Glacial Melt

 

Geophysics professor Magnús Tumi Guðmundsson said there are still consequences from the May 2011 eruption in Grímsvötn, a sub-glacial volcano in Vatnajökull in southeast Iceland, including more rapid melting of the icecap.

Grímsvötn. Archive photo by Páll Stefánsson.

There is a 45°C (113°F) hot lagoon on the glacier’s surface, an uplifting by three centimeters has occurred as the icecap decreases and the water surface of glacial rivers continues to rise, Morgunblaðið reports.

“We assume that significant melt will occur in the western Vatnajökull this summer,” predicted Magnús Tumi, who recently returned from a research expedition to Grímsvötn on behalf of the Glacial Research Association.

During the expedition, researchers sailed on the lagoon in Grímsvötn. “It is remarkable because it’s very hot. In the crater there was a little stream with 45°C warm water. A few hundred meters wide part of the lagoon was at bathing temperature, 25-40°C.”

“The eastern part of the lagoon is considerably colder, yet lukewarm, which is noteworthy given that it is surrounded by a wall of ice,” Magnús Tumi continued. The high temperature is a leftover from the eruption last year.

And the ash fall continues. During dry and windy conditions, ash will blow across south Iceland this summer and even longer.

Large drifts of ash have accumulated by the Ring Road in south Iceland. Drivers are asked to be careful because the ash might blows across the road and block visibility, Fréttablaðið reports.

Click here to read more about the expedition to Grímsvötn.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל והמשמש כמומחה באתר http://www.gotravel.co.il/ וגם באתר http://www.briza.co.il/ לפניות לכותב shark4162@gmail.com

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Quakes Hit Katla Volcano in South Iceland

11.06.2012 | 11:57

מתוך אתר http://www.icelandreview.com/

Series of Quakes Hit Katla Volcano in South Iceland

 

A series of earthquakes began in the sub-glacial volcano Katla in Mýrdalsjökull, south Iceland, shortly before 5 am this morning. Between 5 and 6 am 14 minor quakes were registered there, the strongest of which had the magnitude 1.6 points.

Mýrdalsjökull. Photo by Geir Ólafsson.

Between 6 and 8 am, six other minor quakes were picked up by the Icelandic Meteorological Office’s sensors, but after that the series subsided, visir.is reports.

Geographer Sigþrúður Ármannsdóttir at the Icelandic Meteorological Office, said the epicenter of the quakes were in the ice cauldrons that opened up during what probably was a minor eruption in Katla last summer, when the river Múlakvísl flooded, tearing a hole in the Ring Road.

Sigþrúður believes they were caused by geothermal activity. She added that increased conductivity that has been measured in Múlakvísl lately might indicate that geothermal water is leaking into it.

Approximately one month ago a small glacier outburst occurred in Katla which lasted a few days. Seismic activity in the volcano was picked up by sensors, as well as increased conductivity in Múlakvísl.

The reason was also believed to be increased geothermal activity in one of Katla’s craters.

Click here to read more about activity in Katla.

הכותב יוסי לוי joseph levy הינו מומחה לאיסלנד iceland, המלווה קבוצות בנהיגה עצמית בלבד, והמתכנן מסלולי טיול לפי מידת המטייל והמשמש כמומחה באתר http://www.gotravel.co.il/ וגם באתר http://www.briza.co.il/

לפניות לכותב shark4162@gmail.com

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