Volcanic activity at the Soufriere Hills volcano during the night was at a slightly higher level than yesterday. Seismicity continue to be dominated by small- to moderate-sized rockfall signals; these have increased slightly in size and frequency. The largest signals were recorded at 20:30, 22:40 and 23:22 on 22 May. Some of these events may have been associated with the light ash in Ole Towne and other parts to the west of the volcano last night. Low-amplitude broadband tremor on the seismic stations closest to the volcano (Gages and Chances Peak), was continuous throughout the night. A few long-period events were also recorded during the period.
Visibility during the early morning from the Observatory and Bramble Airport was very poor; low cloud cover continue to obscure the top of the volcano.
The MVO still views the situation at the Soufriere Hills Volcano with grave concern and the scientists continue to urge that visits to the evacuated zone be kept to a minimum. The Tar River, Long Ground and Whites areas are extremely dangerous, and should not be entered under any circumstances.