Minggu, 21 Maret 2010

Volcano erupts in Iceland, hundreds evacuated; scientists wary of larger eruption

Volcano erupts in Iceland, hundreds evacuated; scientists wary of larger eruption

Last update: March 21, 2010 - 8:16 AM

There were no immediate reports of injuries or damage from the Eyjafjallajokull volcano, but a state of emergency was declared and scientists feared the eruption could trigger a larger and potentially more dangerous eruption at the Katla volcano.

Saturday's eruption, which occurred just before midnight (2000 EDT, 8 p.m. EDT), came weeks after a series of small earthquakes. Television footage showed lava flows along the fissure.

"This was a rather small and peaceful eruption but we are concerned that it could trigger an eruption at the nearby Katla volcano, a vicious volcano that could cause both local and global damage," said Pall Einarsson, a geophysicist at the University of Iceland's Institute of Earth Science.

Authorities evacuated 450 people between the farming village of Hvolsvollur and the fishing village of Vik, some 100 miles (160 kilometers) southeast of the capital, Reykjavik, said Vidir Reynisson of the Icelandic Civil Protection Department.

Evacuation centers were set up near the town of Hella. The most immediate threat was to livestock because of the caustic gases.

"We had to leave all our animals behind," Elin Ragnarsdottir, a 47-year-old farmer, told RUV, Iceland's national broadcaster from an evacuation center. "We got a call and a text message ... and we just went."

Iceland sits on a large volcanic hot spot in the Atlantic's mid-oceanic ridge. Volcanic eruptions, common throughout Iceland's history, are often triggered by seismic activity when the Earth's plates move and when magma from deep underground pushes its way to the surface.

Scientists in Iceland have been monitoring the recent activity using seismometers and global positioning instruments. Like earthquakes, however, it is difficult to predict the exact timing of eruptions.

http://www.startribune.com/science/88758697.html

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