Saturday, April 17, 2010

Volcano Chaos, pictures from the Land of "Fire and Ice"

Here are some more photographs of the Volcano, this was was published in the telegraph.

Iceland sits astride the boundary between the Eurasian and North American Tectonic Plates, explaining the island's earthquakes and volcanic activity.

Below is a photograph on the Irish Times website

I found this on National Geographic:


Volcanic Chain Reaction?

Photograph by Hans Strand, Corbis
Not far from Eyjafjallajokull glacier, the much larger Mýrdalsjökull glacier (satellite map) hides the fiery, gently sloping Katla volcano that lies under the ice.
Considered one of Iceland's most dangerous volcanoes, Katla last erupted in 1918 and could be roused by the nearby rumblings that began over the weekend, scientists warned Monday.

"Historically, we know of three eruptions in Katla linked to eruptions in Eyjafjallajokull," Magnús Tumi Gudmundsson, a professor of geophysics and civil-protection adviser, told the AFP news service. For now, though, the giant's sleep appears undisturbed.

Ker Than
Published February 19, 2010
In a satellite image released today by NASA, two neighboring Russianvolcanoes are seen erupting at the same time.
Surprising as the picture may be, the simultaneous eruptions of the Kamchatka Peninsula's Klyuchevskaya and Bezymianny volcanoes isn't all that shocking, according to geologist James Quick of Southern Methodist University in Texas.
"Kamkatcha [map] volcanoes are very active, so it's not uncommon for more than one of these volcanoes to be erupting at the same time," Quick said.
In fact, the volcanoes' close proximity makes it more, not less, likely that they'd explode in unison, he said.
Though there's no "great pool or pipe of lava connecting them," he said, the volcanoes lie above the same active subduction zone, an area where onetectonic plate is diving under another. So if the gnashing of the plates sends heat, lava, gas, or ash up through the earth toward one of the volcanoes, chances are the other might get it too. (See plate tectonics pictures.)
Among the Most Active Volcanoes on Earth
The recent simultaneous eruption began on February 11, when 16,000-foot-tall (4,835-meter-tall) Klyuchevskaya erupted.
Scorching lumps of rock shot more than 1,000 feet (300 meters) into the air, and tall plumes of gas and steam billowed up to 20,000 feet (6 kilometers) above sea level.
Around the same time, 9,500-foot-tall (2,882-meter-tall) Bezymianny was sending up plumes that were smaller and thinner than its neighbor's but still dangerous to low-flying aircraft.
Volcanoes on Kamkatcha are among the most active anywhere on Earth, in part because they lie along the Pacific Ring of Fire—an seismically active arc stretching roughly northward from Chile to Alaska, then westward to Japan and southward to the South Pacific.
Twenty Volcanoes Erupting Right Now?
On a global scale, simultaneous volcanic eruption is a constant.
According to the Smithsonian Institution's Global Volcanism Program, there are about 20 volcanic eruptions happening at any given moment. Some, like Italy's Stromboli volcano, have been erupting continuously for more than a thousand years.
"At one point in 2005, there were five eruptions within the United States all happening at the same time," Quick said.

"We had one in Hawaii, one in the Marianas (map)Mount St. Helens (map), and two in Alaska. You could have pointed at any one of them, and they were erupting."

Heres another photo from National Geographic of Iceland

No comments: