Here’s the latest news from the USGS and SI Global Volcanism Program . It might not record every little volcanic noise in the world each week, but nothing like getting all the major volcanic events summarized on a weekly basis.


Highlights this week (not including Nyiragongo, Redoubt and Galeras):

  • The eruption at Rinjani in Indonesia continues, with elevated seismicity and 300-600 meter plumes.
  • Sporadic strombolian eruptions from the Crater C at Arenal, Costa Rica (since late April)
  • High seismicity, 100 meter domes and continued dome collapses continue at the two domes growing at Chaiten, Chile.
  • Overflights of Nevado del Huila in Colombia show that juvenile material is being extruded at the summit dome.
  • Continued 2.1-3 km / 6,000-10,000 foot ash plumes being produced at Sakurajima, Japan.