The most notable events during the period were an ash cloud, probably resulting from a large rockfall, which reached around 5000 ft and resulted in ash fallout over Plymouth and further SW at around 13:00 (local time) on 08 July, and a pyroclastic flow in the Tar River valley which lead to an ash cloud reaching around 7000 ft and drifting to the NW resulting in ash fall out over the Belham valley at 11:40 on 13 July.
Seismicity has been low during the reporting period, and dominated by rockfalls and long period earthquakes. The seismic network recorded 2 hybrid earthquakes, 1 volcano-tectonic earthquake, 61 rockfall signals, 10 long period rockfall signals and 49 long period earthquakes (most of which occurred on 07 July).
Sulphur dioxide flux measures over the reporting period varied from a high of 612 tonnes/day on the 7th of July to a low of 279 tonnes/day on the 10th of July, with an average of 468 tonnes/day. This value is slightly below the long term average of 500 tonnes/day. The FTIR is still abroad being repaired.
The alert level is currently 3.