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Alin Todor
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[font=Verdana,]One of Indonesia's most active volcanos has erupted, sending lava and searing gas clouds tumbling down its slopes. Volcanology official Agus Budianto said Friday that authorities were still trying to evacuate residents living along the slopes of Mount Karangetang. There were no immediate reports of injuries or serious damage. The 5,853-foot (1,784-meter) mountain is located on Siau, part of the Sulawesi island chain. It last erupted in August, killing four people. Indonesia, the world's largest archipelago, is located on the so-called Pacific "Ring of Fire," an arc of volcanos and fault lines encircling the Pacific Basin. The eruption happened hours after a massive earthquake in Japan that triggered a Pacific-wide tsunami.[/font]
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[/font]Situation Update No. 1
On 18.03.2011 at 15:10 GMT+2
Indonesia issued a red alert Friday after Mount Karangetang on the island of Sulawesi erupted, sending lava and searing gas clouds down its slopes, a volcanologist said. "We raised the volcano's status to the highest red alert level today at 5:45 pm (1045GMT) and ordered an evacuation in three villages on the slopes," government volcanologist Surono said. He said that the 1,784-meter (5,850-foot) mountain on the sparsely-populated island off North Sulawesi oozed lava, heat clouds and debris reaching as far as 3,800 meters away down its slopes. "The eruption is still going on and its current activity remains high," he said. "The main threat is heat clouds that will be fatal for people living in villages on the slope." The volcano killed four people during an eruption in August 2010. Indonesia sits on the Pacific "Ring of Fire" where continental plates collide, causing frequent seismic and volcanic activity. The archipelago nation is home to 129 active volcanoes, including 21 on Java.[/font]
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[font=Verdana,][font=Verdana,]Situation Update No. 2
On 19.03.2011 at 04:08 GMT+2
A red alert has been issued in Indonesia, after Mount Karangetang erupted. Karangetang spewed hot clouds of ash and trapped up to 40 people between lava flows on its slopes overnight as the government raised an alert for the peak to the highest level and evacuated villages. Lava streamed 1,500 metres down the volcano on Siau Island in North Sulawesi province and hot clouds rose 3,800 metres into the air, the head of the country's vulcanology agency said. "We've ordered the villages to be emptied," agency chief Surono told Reuters. The island is sparsely populated but people live near the peak where the land is fertile. A government official in the region said three villages, of about 300 people in all, had been evacuated but 40 people were trapped between two rivers filled with lava. It was not clear if the trapped people were still alive. The volcano erupts frequently but Surono said the alert was raised because of the size of the hot clouds. Indonesia, on the Pacific "ring of fire", has dozens of active volcanoes. Hot ash clouds from Mount Bromo on the main island of Java in January led several airlines to cancel flights to the tourist destination of Bali.[/font][/font]
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[font=Verdana,][font=Verdana,][font=Verdana,]Situation Update No. 3
On 19.03.2011 at 07:16 GMT+2
Indonesia said it had evacuated hundreds of people living near Mount Karangetang off northern Sulawesi island as authorities issued a red alert on Saturday following its eruption. Nearly 600 people live in three villages four kilometres (2.4 miles) from the volcano's western peak, from which lava continues to spew as it disgorges heat clouds, government volcanologist Kristianto said. "The process to evacuate 582 villagers has completed. All are now at safety shelters and nobody was injured," he said from the volcano's monitoring post. "The volcano is still in the phase of eruption. We detected lava flow which reached as far as 1,800 metres (5,905 feet)," he added. The 1,784-metre Karangetan, which forms the northern part of the remote Siau Island in North Sulawesi, killed four people during an eruption in August 2010. The Indonesian archipelago has dozens of active volcanoes and straddles major tectonic fault lines known as the "Ring of Fire" between the Pacific and Indian oceans. The country's most active volcano, Mount Merapi in central Java, has killed more than 350 people in a series of violent eruptions which started in late October.[/font][/font][/font]
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[font=Verdana,][font=Verdana,][font=Verdana,]Sursa[/font][/font][/font]
[font=Verdana,]One of Indonesia's most active volcanos has erupted, sending lava and searing gas clouds tumbling down its slopes. Volcanology official Agus Budianto said Friday that authorities were still trying to evacuate residents living along the slopes of Mount Karangetang. There were no immediate reports of injuries or serious damage. The 5,853-foot (1,784-meter) mountain is located on Siau, part of the Sulawesi island chain. It last erupted in August, killing four people. Indonesia, the world's largest archipelago, is located on the so-called Pacific "Ring of Fire," an arc of volcanos and fault lines encircling the Pacific Basin. The eruption happened hours after a massive earthquake in Japan that triggered a Pacific-wide tsunami.[/font]
[font=Verdana,]
[/font]Situation Update No. 1
On 18.03.2011 at 15:10 GMT+2
Indonesia issued a red alert Friday after Mount Karangetang on the island of Sulawesi erupted, sending lava and searing gas clouds down its slopes, a volcanologist said. "We raised the volcano's status to the highest red alert level today at 5:45 pm (1045GMT) and ordered an evacuation in three villages on the slopes," government volcanologist Surono said. He said that the 1,784-meter (5,850-foot) mountain on the sparsely-populated island off North Sulawesi oozed lava, heat clouds and debris reaching as far as 3,800 meters away down its slopes. "The eruption is still going on and its current activity remains high," he said. "The main threat is heat clouds that will be fatal for people living in villages on the slope." The volcano killed four people during an eruption in August 2010. Indonesia sits on the Pacific "Ring of Fire" where continental plates collide, causing frequent seismic and volcanic activity. The archipelago nation is home to 129 active volcanoes, including 21 on Java.[/font]
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[/font]
[font=Verdana,][font=Verdana,]Situation Update No. 2
On 19.03.2011 at 04:08 GMT+2
A red alert has been issued in Indonesia, after Mount Karangetang erupted. Karangetang spewed hot clouds of ash and trapped up to 40 people between lava flows on its slopes overnight as the government raised an alert for the peak to the highest level and evacuated villages. Lava streamed 1,500 metres down the volcano on Siau Island in North Sulawesi province and hot clouds rose 3,800 metres into the air, the head of the country's vulcanology agency said. "We've ordered the villages to be emptied," agency chief Surono told Reuters. The island is sparsely populated but people live near the peak where the land is fertile. A government official in the region said three villages, of about 300 people in all, had been evacuated but 40 people were trapped between two rivers filled with lava. It was not clear if the trapped people were still alive. The volcano erupts frequently but Surono said the alert was raised because of the size of the hot clouds. Indonesia, on the Pacific "ring of fire", has dozens of active volcanoes. Hot ash clouds from Mount Bromo on the main island of Java in January led several airlines to cancel flights to the tourist destination of Bali.[/font][/font]
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[/font][/font]
[font=Verdana,][font=Verdana,][font=Verdana,]Situation Update No. 3
On 19.03.2011 at 07:16 GMT+2
Indonesia said it had evacuated hundreds of people living near Mount Karangetang off northern Sulawesi island as authorities issued a red alert on Saturday following its eruption. Nearly 600 people live in three villages four kilometres (2.4 miles) from the volcano's western peak, from which lava continues to spew as it disgorges heat clouds, government volcanologist Kristianto said. "The process to evacuate 582 villagers has completed. All are now at safety shelters and nobody was injured," he said from the volcano's monitoring post. "The volcano is still in the phase of eruption. We detected lava flow which reached as far as 1,800 metres (5,905 feet)," he added. The 1,784-metre Karangetan, which forms the northern part of the remote Siau Island in North Sulawesi, killed four people during an eruption in August 2010. The Indonesian archipelago has dozens of active volcanoes and straddles major tectonic fault lines known as the "Ring of Fire" between the Pacific and Indian oceans. The country's most active volcano, Mount Merapi in central Java, has killed more than 350 people in a series of violent eruptions which started in late October.[/font][/font][/font]
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[font=Verdana,][font=Verdana,][font=Verdana,]Sursa[/font][/font][/font]
Alin Todor
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[font="Arial, sans-serif"]Eruptie vulcanica in Islanda a vulcanului Grimsvotn[/font]
[font="Arial, sans-serif"]Scientists say neweruption starts at Iceland’s Grimsvotn volcano[/font]
[font="Arial, sans-serif"]REYKJAVIK, Iceland —Iceland’s most active volcano has started erupting, scientists said Saturday —just over a year after another eruption on the North Atlantic island shut downEuropean air traffic for days.[/font]
[font="Arial, sans-serif"]Iceland’s MeteorologicalOffice confirmed that an eruption had begun at the Grimsvotn volcano,accompanied by a series of small earthquakes. Smoke could be seen rising fromthe volcano, which lies under the uninhabited Vatnajokull glacier in southeastIceland.[/font]
[font="Arial, sans-serif"]One eyewitness, BolliValgardsson, said the plume rose quickly several thousand feet (meters) intothe air.[/font]
[font="Arial, sans-serif"]Grimsvotn last eruptedin 2004. Scientists have been expecting a new eruption and have said previouslythat this volcano’s eruption will likely be small and should not lead to theair travel chaos caused in April 2010 by ash from the Eyjafjallajokul volcano.[/font]
[font="Arial, sans-serif"]Sparsely populated Iceland is one of the world’s most volcanically active countries and eruptionsare frequent.[/font]
[font="Arial, sans-serif"]Eruptions often causelocal flooding from melting glacier ice, but rarely cause deaths.[/font]
[font="Arial, sans-serif"]Last year’sEyjafjallajokul eruption left some 10 millions of air travelers strandedworldwide after winds pushed the ash cloud toward some of the world’s busiestairspace and led most northern European countries to ground all planes for fivedays.[/font]
[font="Arial, sans-serif"]Whether widespreaddisruption occurs again will depend on how long the eruption lasts, how highthe ash plume rises and which way the wind blows.[/font]
[font="Arial, sans-serif"]In November, meltedglacial ice began pouring from Grimsvotn, signaling a possible eruption. Thatwas a false alarm but scientists have been monitoring the volcano closely eversince.[/font]
[font="Arial, sans-serif"]The volcano also eruptedin 1998, 1995 and 1993. The eruptions have lasted between a day and severalweeks.[/font]
[font="Arial, sans-serif"]Sursa[/font]
[font="Arial, sans-serif"][attachment=22229:Islanda.JPG]
[/font][font="Arial, sans-serif"]Sursa[/font][font="Arial, sans-serif"][/font]
[font="Arial, sans-serif"]Cea mai puternicaeruptie a acestui vulcan a fost clasata la nivelul VEI 6 (cel putin lafel de puternica ca Krakatoa in 1883)[/font]
[font="Arial, sans-serif"]Sursa[/font]
Este interesant ca sirul de cutremure care acompaniaza eruptia a inceput la Nord-Est de vulcan, si s-au propagat spre Sud-Vest, culminand cu un 4.6 la 1 km adancime si cam la 35 km distanta de vulcanul Katla. Actual, sunt cutremure de mica intensitate si sub acest vulcan.
[media]
[font="Arial, sans-serif"]Scientists say neweruption starts at Iceland’s Grimsvotn volcano[/font]
[font="Arial, sans-serif"]REYKJAVIK, Iceland —Iceland’s most active volcano has started erupting, scientists said Saturday —just over a year after another eruption on the North Atlantic island shut downEuropean air traffic for days.[/font]
[font="Arial, sans-serif"]Iceland’s MeteorologicalOffice confirmed that an eruption had begun at the Grimsvotn volcano,accompanied by a series of small earthquakes. Smoke could be seen rising fromthe volcano, which lies under the uninhabited Vatnajokull glacier in southeastIceland.[/font]
[font="Arial, sans-serif"]One eyewitness, BolliValgardsson, said the plume rose quickly several thousand feet (meters) intothe air.[/font]
[font="Arial, sans-serif"]Grimsvotn last eruptedin 2004. Scientists have been expecting a new eruption and have said previouslythat this volcano’s eruption will likely be small and should not lead to theair travel chaos caused in April 2010 by ash from the Eyjafjallajokul volcano.[/font]
[font="Arial, sans-serif"]Sparsely populated Iceland is one of the world’s most volcanically active countries and eruptionsare frequent.[/font]
[font="Arial, sans-serif"]Eruptions often causelocal flooding from melting glacier ice, but rarely cause deaths.[/font]
[font="Arial, sans-serif"]Last year’sEyjafjallajokul eruption left some 10 millions of air travelers strandedworldwide after winds pushed the ash cloud toward some of the world’s busiestairspace and led most northern European countries to ground all planes for fivedays.[/font]
[font="Arial, sans-serif"]Whether widespreaddisruption occurs again will depend on how long the eruption lasts, how highthe ash plume rises and which way the wind blows.[/font]
[font="Arial, sans-serif"]In November, meltedglacial ice began pouring from Grimsvotn, signaling a possible eruption. Thatwas a false alarm but scientists have been monitoring the volcano closely eversince.[/font]
[font="Arial, sans-serif"]The volcano also eruptedin 1998, 1995 and 1993. The eruptions have lasted between a day and severalweeks.[/font]
[font="Arial, sans-serif"]Sursa[/font]
[font="Arial, sans-serif"][attachment=22229:Islanda.JPG]
[/font][font="Arial, sans-serif"]Sursa[/font][font="Arial, sans-serif"][/font]
[font="Arial, sans-serif"]Cea mai puternicaeruptie a acestui vulcan a fost clasata la nivelul VEI 6 (cel putin lafel de puternica ca Krakatoa in 1883)[/font]
[font="Arial, sans-serif"]Sursa[/font]
Este interesant ca sirul de cutremure care acompaniaza eruptia a inceput la Nord-Est de vulcan, si s-au propagat spre Sud-Vest, culminand cu un 4.6 la 1 km adancime si cam la 35 km distanta de vulcanul Katla. Actual, sunt cutremure de mica intensitate si sub acest vulcan.
[media]
anda1
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vulcanul erupe in continuare
UPDATE: Cenuşa a început să cadă în zonele populate ale Islandei
UPDATE: Erupţia este mai mare decât cea de ultima dată, din 2004. Drumul care duce spre vulcan, Skeiðarársand, a fost închis din cauza norului de cenuşă.
UPDATE: "Nu credem că erupţia vulcanului Grimsvotn va afecta în vreun fel traficul aerian din şi spre ţara noastră", a declarat Gudjon Arngrimsson, directorul de comunicare al companiei Icelandair, potrivit Reuters.
UPDATE: Autorităţile au interzis zborurile avioanelor pe o rază de 160 de kilometri în jurul vulcanului. "Am închis zona pînă vom şti cu exactitate cum se împrăştie cenuşa în aer. Aşa prevăd procedurile standard în caz de erupţie", a declarat purtătorul de cuvânt al Autorităţii Aviaţiei Civile.
Erupţia vulcanică a fost urmată de o serie de peste 50 de seisme mici, cel mai puternic fiind de magnitudine 3,7. Vulcanul Grimsvotn nu provoaca victime, dar din cauza gheţarului din vârful lui, provoacă inundaţii.
În martie 2010, erupţia unui alt vulcan islandez a provocat haos pe aeroporturile europene, mai multe avioane rămânând la sol blocând sute de mii de persoane.
Grimsvotn a erupt ultima dată în 2004. Oamenii de ştiinţă se aşteptau la această nouă "revărsare". "Grimsvotn este un vulcan puternic, aşa că l-am monitorizat îndeaproape după explozia lui Eyjafjallajokull de anul trecut. După mai multe alarme false înregistrate în noiembrie 2010, aşteptam să erupă în orice moment", a spus profesorul de geofizică Pall Einarsson, de la Universitatea din Islanda. El a adăugat că, în ciuda dimensiunii vulcanului, acesta nu va arunca atât de multă cenuşă ca cel de anul trecut şi nu va afecta traficul aerian.
http://www.adevarul.ro/actualitate/eveniment/Eruptie-vulcanica-Islanda_0_485351461.html?source=yahoo
UPDATE: Cenuşa a început să cadă în zonele populate ale Islandei
UPDATE: Erupţia este mai mare decât cea de ultima dată, din 2004. Drumul care duce spre vulcan, Skeiðarársand, a fost închis din cauza norului de cenuşă.
UPDATE: "Nu credem că erupţia vulcanului Grimsvotn va afecta în vreun fel traficul aerian din şi spre ţara noastră", a declarat Gudjon Arngrimsson, directorul de comunicare al companiei Icelandair, potrivit Reuters.
UPDATE: Autorităţile au interzis zborurile avioanelor pe o rază de 160 de kilometri în jurul vulcanului. "Am închis zona pînă vom şti cu exactitate cum se împrăştie cenuşa în aer. Aşa prevăd procedurile standard în caz de erupţie", a declarat purtătorul de cuvânt al Autorităţii Aviaţiei Civile.
Erupţia vulcanică a fost urmată de o serie de peste 50 de seisme mici, cel mai puternic fiind de magnitudine 3,7. Vulcanul Grimsvotn nu provoaca victime, dar din cauza gheţarului din vârful lui, provoacă inundaţii.
În martie 2010, erupţia unui alt vulcan islandez a provocat haos pe aeroporturile europene, mai multe avioane rămânând la sol blocând sute de mii de persoane.
Grimsvotn a erupt ultima dată în 2004. Oamenii de ştiinţă se aşteptau la această nouă "revărsare". "Grimsvotn este un vulcan puternic, aşa că l-am monitorizat îndeaproape după explozia lui Eyjafjallajokull de anul trecut. După mai multe alarme false înregistrate în noiembrie 2010, aşteptam să erupă în orice moment", a spus profesorul de geofizică Pall Einarsson, de la Universitatea din Islanda. El a adăugat că, în ciuda dimensiunii vulcanului, acesta nu va arunca atât de multă cenuşă ca cel de anul trecut şi nu va afecta traficul aerian.
http://www.adevarul.ro/actualitate/eveniment/Eruptie-vulcanica-Islanda_0_485351461.html?source=yahoo
Alin Todor
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Eruptia vulcanului Grímsvötn este mai mare decat cea din 2004 si din primele estimari, mai puternica decat eruptia din 2010 a vulcanului Eyjafjallajökull
Eruption of Grímsvötn volcano, Iceland, begins 21 May 2011
The subglacial Grímsvötn volcano, Iceland, began erupting on 21 May 2011, around 18-19 GMT. The eruption was preceded by intensive earthquake activity lasting for about 1 hour. An ‘ash-loaded’ eruption plume rose rapidly up to about 17 km height (estimated 55000 feet from ground based radar, overview flights, and pilot reports). Ash from the lower part of the eruption plume was deflected southwards and from a higher level towards the east. Few hours after the onset of the eruption ash fall began over wide area in the nearest populated areas south of the Vatnajökull ice cap, at a distance of more than 50 km from the eruption site.
Grímsvötn is a basaltic volcano that has the highest eruption frequency of all volcanoes in Iceland. It is located near the centre of the Vatnajökull ice cap, the largest ice cap in Europe. The volcano has a caldera complex, the most recent one hosting the Grímsvötn subglacial caldera lake that is sustained by extensive geothermal activity. The volcano is almost fully ice covered and interaction of magma and meltwater from the ice causes phreatomagmatic explosive activity.
Initial overview flight, with limited visibility, and earthquakes locations suggest an eruption site in the southwestern part of the Grímsvötn caldera. Ice cover there is relatively thin (50-200 m) and meltwater is anticipated to accumulate within the Grímsvötn caldera lake. From there, it may eventually drain in a sudden glacial outburst flood, jökulhlaup, along a subglacial channel and issue from the Skeiðarárjökull outlet glacier.
The height of the initial plume in the present eruption, 17 km, is much higher than in a preceding eruption at Grímsvötn in 2004. Then an eruption produced a plume reaching an estimated height of 6-10 km above vent. The present plume is also higher than recorded in the Eyjafjallajökull eruption in Iceland last year.
A GPS-station on the rim of the Grímsvötn caldera has revealed continuous inflation and expansion of the volcano of few cm per year since the 2004 eruption, interpreted as inflow of magma to a shallow chamber. Another long-term precursor was increase in seismicity over last few months, including some bursts of tremor. Increase in geothermal activity was as well observed in the months leading to the eruption.
London VAAC forecasts air-traffic interruption limited to Iceland and surroundings.
Sursa
Eruption of Grímsvötn volcano, Iceland, begins 21 May 2011
The subglacial Grímsvötn volcano, Iceland, began erupting on 21 May 2011, around 18-19 GMT. The eruption was preceded by intensive earthquake activity lasting for about 1 hour. An ‘ash-loaded’ eruption plume rose rapidly up to about 17 km height (estimated 55000 feet from ground based radar, overview flights, and pilot reports). Ash from the lower part of the eruption plume was deflected southwards and from a higher level towards the east. Few hours after the onset of the eruption ash fall began over wide area in the nearest populated areas south of the Vatnajökull ice cap, at a distance of more than 50 km from the eruption site.
Grímsvötn is a basaltic volcano that has the highest eruption frequency of all volcanoes in Iceland. It is located near the centre of the Vatnajökull ice cap, the largest ice cap in Europe. The volcano has a caldera complex, the most recent one hosting the Grímsvötn subglacial caldera lake that is sustained by extensive geothermal activity. The volcano is almost fully ice covered and interaction of magma and meltwater from the ice causes phreatomagmatic explosive activity.
Initial overview flight, with limited visibility, and earthquakes locations suggest an eruption site in the southwestern part of the Grímsvötn caldera. Ice cover there is relatively thin (50-200 m) and meltwater is anticipated to accumulate within the Grímsvötn caldera lake. From there, it may eventually drain in a sudden glacial outburst flood, jökulhlaup, along a subglacial channel and issue from the Skeiðarárjökull outlet glacier.
The height of the initial plume in the present eruption, 17 km, is much higher than in a preceding eruption at Grímsvötn in 2004. Then an eruption produced a plume reaching an estimated height of 6-10 km above vent. The present plume is also higher than recorded in the Eyjafjallajökull eruption in Iceland last year.
A GPS-station on the rim of the Grímsvötn caldera has revealed continuous inflation and expansion of the volcano of few cm per year since the 2004 eruption, interpreted as inflow of magma to a shallow chamber. Another long-term precursor was increase in seismicity over last few months, including some bursts of tremor. Increase in geothermal activity was as well observed in the months leading to the eruption.
London VAAC forecasts air-traffic interruption limited to Iceland and surroundings.
Sursa
Alin Todor
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Referitor la eruptia vulcanului Grimsvotn:
In primele ore, coloana de cenusa s-a ridicat la 20 km, actual ea variind intre 10 si 15 km.
Ultimele noutati oficiale despre eruptie aici
Acesta eruptie este cea mai puternica a acestui vulcan din 1873 , comform celor spuse de Magnus Tumi Gudmundsson, Profesor de Geofizica a Universitatii Islandeze.
Alt aspect este referitor la cenusa. Spre deosebire de 2010 cand a fost vorba despre o cenusa extrem de fina, pana acus este vorba despre o cenusa mult mai densa si grea, care se depune in jurul vulcanului, doar o foarte mica parte fiind purtata de vant.. Circulatia atmosferica se va modifica incepand de marti spre est ca urmare a unui front atmosferic deosebit de activ. In Marea Britanie s-a dat deja averizare de vanturi puternise si ploi abundente. S-a putea ca o cantitate de cenusa sa ajunga in Mare Britanie
In primele ore, coloana de cenusa s-a ridicat la 20 km, actual ea variind intre 10 si 15 km.
Ultimele noutati oficiale despre eruptie aici
Acesta eruptie este cea mai puternica a acestui vulcan din 1873 , comform celor spuse de Magnus Tumi Gudmundsson, Profesor de Geofizica a Universitatii Islandeze.
Alt aspect este referitor la cenusa. Spre deosebire de 2010 cand a fost vorba despre o cenusa extrem de fina, pana acus este vorba despre o cenusa mult mai densa si grea, care se depune in jurul vulcanului, doar o foarte mica parte fiind purtata de vant.. Circulatia atmosferica se va modifica incepand de marti spre est ca urmare a unui front atmosferic deosebit de activ. In Marea Britanie s-a dat deja averizare de vanturi puternise si ploi abundente. S-a putea ca o cantitate de cenusa sa ajunga in Mare Britanie
anda1
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aici ar trebui sa se vada vulcanul, dar acum e innorat. sau o fi cenusa? :uameni:
http://live.mila.is/grimsvotn2/
http://live.mila.is/grimsvotn2/
Alin Todor
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Norul de cenuşă nu afectează România până miercuri dimineaţă
[attachment=22468:4.jpg]
Imagine din satelit cu erupţia vulcanului Grimsvotn, din Islanda
Ministerul Mediului şi Pădurilor (MMP) a anunţat marţi că norul de cenuşă vulcanică produs de erupţia vulcanului activ Grimsvötn din sud-estul Islandei nu va afecta spaţiul românesc, până miercuri dimineaţa.
Potrivit datelor de ultimă oră primite de MMP, până la data de 25 mai 2011 (ora 06 GMT - ora 09, ora României) norul de cenuşă vulcanică nu va afecta spaţiul românesc.
MMP monitorizează permanent prin Administraţia Naţională de Meteorologie şi Agenţia Naţională pentru Protecţia Mediului atât traiectoria norului de cenuşă, cât şi concentraţia particulelor în aerul ambiental.
Datele monitorizate sunt în conformitate cu ultimele actualizări ale prognozei elaborate de London Volcanic Ash Advisory (Centrul internaţional de avertizare pentru aviaţie, privind cenuşa vulcanică).
Norul de cenuşă provocat de erupţia vulcanului islandez Grimsvötn deasupra Scoţiei şi nordului Irlandei a condus marţi la anularea a circa 500 de zboruri din cele 29.000 prevăzute, mare parte în Scoţia, potrivit Organizaţiei europene pentru securitatea navigaţiei aeriene, Eurocontrol.
Serviciul de meteorologie al Germaniei a anunţat că norul de cenuşă ar putea determina închiderea temporară, începând de la miezul nopţii (orele 22.00 GMT), a aeroporturilor din Hamburg şi Bremen, iar mai târziu şi la Berlin.
Vulcanul islandez Grimsvotn a erupt în weekend. Vulcanologii islandezi au declarat că erupţia va dura câteva zile sau săptămâni şi nu va duce la un colaps în transporturile aeriene, aşa cum s-a întâmplat în primăvara anului 2010.
Erupţiile vulcanice sunt comune în Islanda, ţară aflată de-a lungul Riftului Atlanticului, care separă placa tectonică eurasiatică de cea nord-americană.
Erupţia vulcanului islandez Eyjafjallajokull în luna aprilie 2010, care a impus închiderea în totalitate sau în mare parte a spaţiului aerian european timp de o lună, a provocat economiei mondiale pagube de aproximativ cinci miliarde de dolari, dintre care 2,2 miliarde numai sectorului aerian, potrivit estimărilor firmei de consultanţă Oxford economics.
Sursa
Momentul eruptiei surprins din satelit
[attachment=22469:ashcloud_964x723.gif]
[attachment=22468:4.jpg]
Imagine din satelit cu erupţia vulcanului Grimsvotn, din Islanda
Ministerul Mediului şi Pădurilor (MMP) a anunţat marţi că norul de cenuşă vulcanică produs de erupţia vulcanului activ Grimsvötn din sud-estul Islandei nu va afecta spaţiul românesc, până miercuri dimineaţa.
Potrivit datelor de ultimă oră primite de MMP, până la data de 25 mai 2011 (ora 06 GMT - ora 09, ora României) norul de cenuşă vulcanică nu va afecta spaţiul românesc.
MMP monitorizează permanent prin Administraţia Naţională de Meteorologie şi Agenţia Naţională pentru Protecţia Mediului atât traiectoria norului de cenuşă, cât şi concentraţia particulelor în aerul ambiental.
Datele monitorizate sunt în conformitate cu ultimele actualizări ale prognozei elaborate de London Volcanic Ash Advisory (Centrul internaţional de avertizare pentru aviaţie, privind cenuşa vulcanică).
Norul de cenuşă provocat de erupţia vulcanului islandez Grimsvötn deasupra Scoţiei şi nordului Irlandei a condus marţi la anularea a circa 500 de zboruri din cele 29.000 prevăzute, mare parte în Scoţia, potrivit Organizaţiei europene pentru securitatea navigaţiei aeriene, Eurocontrol.
Serviciul de meteorologie al Germaniei a anunţat că norul de cenuşă ar putea determina închiderea temporară, începând de la miezul nopţii (orele 22.00 GMT), a aeroporturilor din Hamburg şi Bremen, iar mai târziu şi la Berlin.
Vulcanul islandez Grimsvotn a erupt în weekend. Vulcanologii islandezi au declarat că erupţia va dura câteva zile sau săptămâni şi nu va duce la un colaps în transporturile aeriene, aşa cum s-a întâmplat în primăvara anului 2010.
Erupţiile vulcanice sunt comune în Islanda, ţară aflată de-a lungul Riftului Atlanticului, care separă placa tectonică eurasiatică de cea nord-americană.
Erupţia vulcanului islandez Eyjafjallajokull în luna aprilie 2010, care a impus închiderea în totalitate sau în mare parte a spaţiului aerian european timp de o lună, a provocat economiei mondiale pagube de aproximativ cinci miliarde de dolari, dintre care 2,2 miliarde numai sectorului aerian, potrivit estimărilor firmei de consultanţă Oxford economics.
Sursa
Momentul eruptiei surprins din satelit
[attachment=22469:ashcloud_964x723.gif]
Alin Todor
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La ora actuala, se pare ca faza activa a eruptiei a incetat : http://www.publika.md/vulcanul-grimsvotn-din-islanda-s-a-domolit_338321.html
Totusi, este vorba despre un vulcan cu "antecedente" violente, si nu ar fi exclus ca, dupa o perioada de relativ "calm", sa asistam la o noua serie de explozii
Totusi, este vorba despre un vulcan cu "antecedente" violente, si nu ar fi exclus ca, dupa o perioada de relativ "calm", sa asistam la o noua serie de explozii
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Eruptie la granita dintre Chile si Argentina (Complexul vulcanic Puyehu). Detalii : http://hisz.rsoe.hu/...10604-31011-MLC
Eruptie a vulcanului Popocatepetl (60 km SE de Mexico City). Detalii : http://hisz.rsoe.hu/...10603-31002-MEX
UPDATE Chile: Lantul vulcanic Puyehue-Cordon-Caulle a intrat in eruptie, peste 3.500 de persoane au fost evacuate Sursa
Eruptie a vulcanului Popocatepetl (60 km SE de Mexico City). Detalii : http://hisz.rsoe.hu/...10603-31002-MEX
UPDATE Chile: Lantul vulcanic Puyehue-Cordon-Caulle a intrat in eruptie, peste 3.500 de persoane au fost evacuate Sursa
ady24
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Mai tineti minte secventele din filmul acela intitulat "Vulcanul" , cu lava care se scurgea in mare ? O astfel de secventa s'a petrecut in Hawaii , datorita eruptiei vulcanulului Kiluaea care a revarsat o cantitate imensa de lava in lacul Halemaumau, informeaza stirileprotv.ro
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Alin Todor
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Alin Todor
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In ultimele zile s-a inregistrat o activitate seismica neobisnuita in jurul vulcanului Hekla din Islanda. Deamenea, in ultima periaoda, masuratorile GPS, au confirmat acumularea de lava in camera magmatica, ceaa ce ar putea semnala ca o eruptie este iminenta. Hekla este cel mai activ vulcan di Islanda, cu o euptie in medie, la fiecare 10 ani. Ultima eruptie a fost in februarie 2000.
Sursa
Camera de supraveghere a vulcanului Hekla : aici
Sursa
Camera de supraveghere a vulcanului Hekla : aici
Alin Todor
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Activitate microseismica sub vulcanul Katla din Islanda. Se raporteaza o "usoara" topire a ghetarului care acopera acest vulcan, precum si o emisie puternica de sulf. Statistic, Katla erupe la 0.5-1.5 ani dupa ce erupe [font=Verdana, Geneva, sans-serif]Eyjafjallojokull, care a avut ultima eruptie in aprilie anul trecut[/font]
anda1
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webcam pt Katla http://www.ruv.is/katla
Alin Todor
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Situatie destul de ciudata in Islanda.
In ultimele zile se inregistreaza cutremure "armonice", provocate de miscarea magmei in ce putin trei zone ale Islandei:
- Hekla : Detalii
- Vatnajokull (Grimsvotn) : Detalii
- Mýrdalsjökull (Katla): Detalii
In cazul eruptiei din 11 mai a vulcanului Grimsvotn, acesta a fost precedata de o secventa seismica directionata de la Vatnajokull spre Mýrdalsjökull, iar in ultimele zile s-au inregistrat inundatii provenind de la ghetarul Mýrdalsjökull, care initial au fost puse pe seama activitatii geotermale, dar care, se pare au fost cauzate de o eruptie subglacaiara minora a vulcanului Katla.[font="Arial, sans-serif"]
[/font]
In ultimele zile se inregistreaza cutremure "armonice", provocate de miscarea magmei in ce putin trei zone ale Islandei:
- Hekla : Detalii
- Vatnajokull (Grimsvotn) : Detalii
- Mýrdalsjökull (Katla): Detalii
In cazul eruptiei din 11 mai a vulcanului Grimsvotn, acesta a fost precedata de o secventa seismica directionata de la Vatnajokull spre Mýrdalsjökull, iar in ultimele zile s-au inregistrat inundatii provenind de la ghetarul Mýrdalsjökull, care initial au fost puse pe seama activitatii geotermale, dar care, se pare au fost cauzate de o eruptie subglacaiara minora a vulcanului Katla.[font="Arial, sans-serif"]
[/font]
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