Planchon-Peteroa

A new Weekly Volcanic Activity Report from the Smithsonian and USGS Global Volcanism Program! Highlights from this week's report include: Things are getting a little noisy in Colombia. I mentioned a few weeks ago about a possible explosion at Nevado del Ruiz. Now we have reports of increased seismicity under nearby Cerro MachÃn and ash plumes from Nevado del Huila. After a few centuries of relative quiet, it looks like the volcanoes of the Colombian Andes are looking more lively. Also in South America, a gas plume was spotted at Chile's Planchon-Peteroa. This is the second time this year…

This week's USGS/Smithsonian GVP Volcano Update! Highlights include: A volcano I had never heard of in the Kuril islands is showing signs of life: Kharimkotan. Satellite images show a thermal anomaly at the summit of the volcano - its last known eruption was in 1933. Ash, sulfur dioxide and steam continue to erupt from Nyamuragira in the Congo, although lava flows have abated. Crater C at Arenal had sporadic strombolian activity - which is par for the course for the Costa Rican volcano. I must have missed this, but since December 14, the ash erupted at Gaua in Vanuatu has become denser and…