The Sciences

SI/USGS Weekly Volcano Activity Report for 9/30-10/6/2009

Rocky Planet iconRocky PlanetBy Erik KlemettiOct 9, 2009 1:01 PM

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Somehow I missed a week of the SI/USGS Weekly Volcano Activity Reports and almost missed another. Here is this week's update!

Highlights (not including Chaiten

, Soufriere Hills

or Cleveland

) include:

  • The alert level at Galeras in Colombia was raised to Red after an explosion on September 30 and returned to orange ... and then yellow ... after activity tapered.

  • Sakurajima in Japan produced 1.8-4.3 km / 6,000-14,000-tall ash-and-steam plumes, along with incandescent tephra that was thrown almost two kilometers from the vent.

  • Multiple steam-and-ash plumes reached 4.3 km / 14,000 feet at Langila in the New Britain Islands.

  • Sangay in Ecuador produced ash plumes that reached as high as 7.6 km / 25,000 feet.

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