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SI/USGS Weekly Volcano Activity Report for 7/29-8/4/2009

The latest volcano news from the USGS and Smithsonian.

We’ve made it to Ohio! Tomorrow I’ll hopefully be returning to regularly scheduled updates, but until then, enjoy this week’s SI/USGS Weekly Volcano Report.

Highlights include:

  • KVERT mentions that seismicity has increased recently at both Kizimen and Kliuchevskoi on the Kamchatka Peninsula.
  • ~4 km / ~13,500 foot steam-and-ash plumes spotted at Colima in Mexico.
  • Rumbling noises, incandescent ejecta and ~4.3 km / 14,000 foot ash plumes at Fuego in Guatemala. Explosions were increasing as the August began.
  • It was a busy week in Guatemala, as ash/gas plumes were spotted at Santiaguito and Pacaya as well.
  • Ashfall and tremors continue at Nevado del Huila in Colombia as a new wave of eruptions seems to have started.
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