Notice received From: Simon Carn :

Nyamuragira (DR Congo) erupted overnight on July 25-26. The orbit of the Earth Probe Total Ozone Mapping Spectrometer (EP TOMS) satellite was
well-placed over the region at 1138 (local time) on July 26, and an SO2 cloud associated with this eruption was detected. The coarse spatial
resolution of EP TOMS dictates that possible contemporaneous SO2 emissions from Nyiragongo cannot be ruled out. Preliminary analysis
indicates an SO2 mass of ~125-140 kilotons (kt) in the cloud, with the highest SO2 concentrations (peaking at ~100 milli atm cm or Dobson
Units) recorded in a ~400 km-long and ~300 km-wide segment of the plume extending WSW from the volcano across the DR Congo. SO2 concentrations
over the volcano were somewhat lower at ~45 milli atm cm. From the distal end of the ~400 km-long segment, a narrower and less distinct portion of the plume (with SO2 concentrations <30 milli atm cm) extended ~500 km to the NW. At its furthest extent the plume was ~800 km from Nyamuragira. TOMS has not detected any ash cloud associated with this
eruption.

Images can be viewed on the TOMS volcanic emissions website (http:/skye.gsfc.nasa.gov). We will continue to monitor SO2 emissions from this eruption if it continues.