The latest Weekly Volcanic Activity Report from our friends at the Smithsonian Global Volcanism Program and the USGS.
Highlights (not including Eyjafjallajökull - you can check the latest IMO update on that eruption and the latest VAAC ash advisories.):
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.
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.
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.
Costa Rica's Turrialba continues to emit volcanic gases from the fissures that opened at the beginning of 2010.
