SI/USGS Weekly Volcano Activity Report for 4/22-28/2009

The weekly USGS/SI roundup is out. Highlights (beyond Slamet) include:

  • Explosions (some heard 25 km away) and incandescent blocks that started fires at Galeras, Colombia.
  • Ash and tephra being thrown tens of meters into the air and a 4-m tall spatter cone being built at Pacaya, Guatemala
  • Also in Guatemala, Santa Maria's Santiaguito dome produced ash plumes and explosions.
  • Steam, ash and sulfur odors from the continuing eruption at Redoubt, Alaska.
  • Increased seismicity, steam and ash plumes along with a thermal anomaly at El Reventador in Ecuador

More like this

Image courtesy of AVO/USGS by Tricia Joy Sadler. Taken 3/28/2009 at 3:29 PM
Your weekly dose of volcanic activity from the USGS/SI. (a little late thanks to an exciting day of column chemistry). Some highlights include:
Matua Islands (also known as Matsuwa Island), home of Sarychev Peak.