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USGS/SI Weekly Volcanic Activity Report for May 12-18, 2010

The latest USGS/Smithsonian Volcanic Activity Report, with news from Chile, Costa Rica, Russia and beyond!

The latest Weekly Volcanic Activity Report from our friends at the Smithsonian Global Volcanism Program and the USGS.


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Highlights (not including Eyjafjallajökull – you can check the latest IMO update on that eruption and the latest VAAC ash advisories.):

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  • Villarrica in Chile was raised from Alert Level 1 to 2 by the Chilean SERNAGEOMIN after an increase in seismicity, a rise in the lava lake levels at the summit and more vigorous fumarolic activity.
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  • In the first update in a while, a small ash plume was noticed at Chaiten in Chile, rising to ~1.8 km (8,000 feet) from the new domes.
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  • Karymsky in Russia continues to produce ash plumes that reach as high as 4.6 km (15,000 feet) along with a thermal anomaly at the summit for several days.
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  • Costa Rica’s Turrialba continues to emit volcanic gases from the fissures that opened at the beginning of 2010.
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