SI/USGS Weekly Volcano Activity Report for 10/21-27/2009

The SI/USGS GVP site is back up and running - and they've posted a new weekly volcano activity report. Enjoy!

Highlights include:

  • Nevado del Huila in Colombia has been showing signs that a new eruption might be starting. Seismicity has increased and minor ash fall has been reported, leading to an increase in the alert level at the volcano to "orange" (high).
  • Ebeko in the Kuril Islands off Russia and Japan produced a ~8.8 km / 29,000 foot ash plume.
  • Thermal images of the crater at El Reventador in Ecuador show that hot material is filling in the dome complex - this followed ash-and-steam explosions earlier in the week.
  • Santa MarÃa's Santiaguito (Guatemala) dome produced ash fall, avalanches and was strongly degassing over the last week.
  • White and grey plumes reached up to ~4 km / 13,500 feet at Colima in Mexico.

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.