The level of activity at the volcano has been very low overnight. A small swarm of earthquakes yesterday afternoon was followed by a period of volcanic tremor from 6:10 pm to 7 pm. There was a moderate pyroclastic flow during this tremor, at about 6:15 pm. The went down the Tar River valley as far as the Estate House, and the ash cloud was blown over Plymouth. Since the end of the tremor episode, the volcano has been quiet, with only a few rockfalls recorded.
The visibility was good at first light, but has deteriorated and so no views of the crater area have been possible.
The eastern side of dome is still steep and unstable, so that further pyroclastic flows could occur with little warning. Residents are therefore reminded to remain alert and responsible at all times. This includes traveling with an ash mask, spending the minimum possible time in the evacuated zone and being prepared to take recommended action when advised. The Tar River and upper Galway's areas are extremely dangerous, and should not be entered under any circumstances. Zone E, which includes Corkhill and the airport, remains safe at this time.
MVO Chief Scientist, Mr Richie Robertson, celebrates his birthday today. The MVO staff wish him a peaceful and relaxing day.