Declining activity

10/08/2016 Nick

The activity of the volcano has been showing a declining tendancy over the past weeks. Explosions are now of a smaller magnitude, releasing less ash with the columns not reaching such high altitudes. The SO2 fluxes are now getting harder to measure with only a small continuous gas release from the volcano. Fieldwork continues at CIIV, with the photo showing San Antonio, recently visited for continued studies of the PDC deposits that were produced during July 2015. You can see how erosion from the rain has cut a considerable channel already in the deposits. Only the top couple of metres were from the 2015 event, the rest being from material from older PDCs remobilized by lahars. This ravine received a smaller volume than the main deposit in Montegrade, with the flow jumping from one ravine to the other on a bend in Montegrande.