Skip to content
Guest Thinkers —

SI/USGS Weekly Volcano Activity Report for 7/1-7/2009

The latest round-up of volcano news, including the potential spotting of a dome growing at Sarychev Peak, rumblings in El Salvador and small ash plumes at Anak Krakatau.
Sign up for Big Think on Substack
The most surprising and impactful new stories delivered to your inbox every week, for free.

All the volcano news that is fit to print, all thanks to the USGS/Smithsonian GVP!

Highlights (not include Manda Hararo, Kilauea and Mayon) include

  • San Miguel in El Salvador has been experiencing increased seismicity. The last time the volcano erupted was in 2002.
  • A pilot spotted a ~10,000 foot / 3 km ash plume emanating from Anak Krakatau in Indonesia.
  • Another ash plume, this time at Ubinas, Peru, was spotted by pilots rising to ~6.7-9.1 km / 20-30,000 feet.
  • Explosions were heard from Suwanose-jima in Japan, but no associated ash plumes were spotted.
  • It sounds like a lava dome has been spotted at Sarychev Peak in the Kuril Islands of Russia. An “intense thermal anomaly” was noted at the summit in satellite images and gas/steam plumes have been seen each day. However, no new ash plumes have been noticed since June 16.
    • Sign up for Big Think on Substack
    The most surprising and impactful new stories delivered to your inbox every week, for free.
    Related
    Up Next