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The Sciences

GVP Weekly Volcanic Activity Report for July 28-August 3, 2010

Rocky PlanetBy Erik KlemettiAugust 5, 2010 4:54 PM

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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 Machín 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 that increased gas emissions have been noted at the volcano that hasn't erupted since 1998.

  • Shiveluch on the Kamchatka Peninsula in Russia continues to rumble - ash plumes were produced from pyroclastic flows and steam-and-gas plumes reaching 4 km / ~13,100 feet were spotted as well.

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