Skip to content
Guest Thinkers

SI/USGS Weekly Volcano Activity Report for 4/29-5/5/2009

The latest, greatest news of volcanism worldwide.

All the eruptions fit to print from the Smithsonsian/USGS GVP Weekly Report.


A few highlights (not including Redoubt, Rinjani and Slamet):

  • Multiple ash plumes from Galeras (Colombia), some producing noticeable ash fall up to 35 km from the vent.
  • The Alert Level at Anak Krakatau, Indonesia was raised to 3 (out of 4) after a sharp increase in the number of explosions.
  • The Alert Level at Cleveland in Alaska was lowered from Yellow to “Unassigned” (no Green for Cleveland as there is no real-time seismic network for the volcano, thus no “background levels” to compare.)
  • Ebeko in Russia continues to produce ash plumes that reach 2-3.5 km / 6-10,000 feet.
  • Incandescence, gas emissions and 2.4 / 8,000 foot ash plumes continues to be observed from the Tavurvur vent at Rabaul, Papua New Guinea.

  • Related
    Lorem ipsum dolor sit amet, consectetur adipiscing elit. Nullam id tincidunt mi. Morbi malesuada nulla sit amet est hendrerit tincidunt. Etiam viverra, nisl id volutpat eleifend, est augue sodales orci, […]

    Up Next