MVO reported that during 10-17 October the activity level at the
Soufrière Hills lava dome was low and consisted mainly of mudflows.
Mudflows were particularly numerous during 15-16 October due to the
passage of hurricane Omar to the N. Erosion of the talus slope on the
E side of the lava dome also significantly increased and, as a result,
a large gap in the talus was created that exposed the core of the
dome. During an overflight on 17 October the lava dome was seen
vigorously steaming, and thermal imagery revealed that the hottest
temperatures were associated with the new Gages vent formed in August.
The Hazard Level remained at 3

MVO reported that during 29 August-5 September, data suggested that the W side of the Soufrière Hills lava dome continued to grow. Lahars and rockfalls dominated the activity. Lahars likely descended the Tar River valley on 29 and 31 August. On 1 September, a lahar descended the Belham River valley to the NW; the event lasted approximately 50 minutes. A new vent on the NW part of the lava dome, a little further N of the previous Gages vent, was observed during an overflight on 4 September. The smell of volcanic gases was occasionally noticed when the wind blew N and NE. The Hazard Level remained at 3.

Soufrière Hills volcano produces small pyroclastic flows going down the Tar River on the East flank of the lava dome, which continues to grow with lava extrusion on its western part.

A new lava extrusion from Soufrière Hills started from the W side of the lava dome between the 28 July lava-dome collapse event and 8 August, when a new channel of fresh rockfall material was seen below Gages Wall. During 8-15 August, seismicity and the rate of lava extrusion were generally low and sulfur dioxide emissions were elevated. On 14 August the W side of the dome was visible and the explosion crater that was generated on 28 July was almost completely filled with new lava. Lava spilled over the lower and W side of the crater and generated rockfalls below Gages Wall that were observed and heard from St. George's Hill. During 14-15 August, the scent of volcanic gases was noticeable at times in inhabited areas of Montserrat. The Hazard Level was 3.

After several months of quiet, a major collapse of the lava dome of Soufrière Hills took place on 28 July, 2008.
The collapse started at 11:27 pm local time without any precursory activity. Part of the western side of the lava dome collapsed generating pyroclastic flows that reached Plymouth and the sea.
There were also a few explosions from the dome during the collapse, with
the largest at approximately 11:32 pm. The height of the ash column was estimated at 12 kilometres (40,000 feet) above sea level.

During 13-19 February the lava dome at Soufrière Hills changed very little. Seismic activity was very low and low-level rockfall activity continued. Fumarolic activity on the N and E flanks continued. Active fumaroles were also noted in the Galway's area to the S of the dome.
Heavy rainfall triggered lahars in multiple drainages. The Alert Level remained elevated at 4 (on a scale of 0-5).

The lava dome at Soufrière Hills has changed very little, based on visual observations on 23 January. Seismic activity was very low and low-level rockfall activity continued. Fumarolic activity on the N and E flanks also continued, along with active fumaroles in the Galway's area to the S of the dome and W in the Gages Wall area. ( Alert Level remained elevated at 4).

During 24-30 October the lava dome at Soufrière
Hills changed very little. Seismic activity was very low and low-level rockfall and pyroclastic flow activity continued.
During 25-26 October, vigorous lahar activity was noted, especially to the E, including the Tar River valley. ashfall was visible over N Montserrat, possibly due to rockfall activity and steam venting.
On 30 October a small pyroclastic flow was observed in the Tar River valley. The Alert Level remained elevated at 4.

MVO reported that during 17-23 October the lava dome at Soufrière
Hills changed very little, based on visual observations. Seismic
activity was very low and low-level rockfall activity continued. On 12
October, a small pyroclastic flow descended about 2 km E down the Tar
River valley. A resultant ash plume drifted W. On 23 October, lahars
descended down drainages on all sides of the volcano. The Alert Level
remained elevated at 4 (on a scale of 0-5).

Montserrat Volcano Observatory reported that during 19-25 September the lava dome at Soufrière Hills changed only very little. Seismic activity was very low and low-level rockfall activity continued.

MVO reported that during 21-28 August the lava dome at Soufrière Hills changed very little, based on visual observations. Seismic activity was very low and low-level rockfall activity continued. On 23 August, heavy rainfall triggered small rockfalls and four pyroclastic flows to the E down the Tar River Valley. ash and steam emissions from the dome produced a plume that drifted W. A lahar occurred in the Belham river valley to the NW. The Alert Level remained elevated at 4 (on a scale of 0-5).

MVO reported that during 13-24 July, the lava dome at Soufrière Hills changed very little, based on visual observations. Seismic activity was very low and low-level rockfall activity continued. Heavy rainfall generated lahars in E drainages on 19 July. The Alert Level remained elevated at 4 (on a scale of 0-5).
 

MVO reported that during 8-18 June the lava dome at Soufrière Hills changed very little based on visual observations, and seismic activity was very low. Low-level rockfall and pyroclastic flow activity continued. The Alert Levelremained at 4 (on a scale of 0-5).
 

MVO reported that during 25 May-1 June the lava dome at Soufrière Hills changed very little based on visual observations and seismic activity was very low. Low-level rockfall and pyroclastic flow activity continued. On 31 May, pyroclastic flows traveled approximately 1 km E in the Tar River Valley. The Alert Level remained at 4 (on a scale of 0-5).
 

Based on visual observations, MVO reported that during 11-21 May lava-domegrowth at Soufrière Hills likely ceased and the overall structure of the dome changed very little. Low-level rockfall and pyroclastic flow activity continued. Seismic activity was very low. The Alert Level remained at 4 (on a scale of 0-5).
 

During 27 April-8 May, visual observations suggested that lava-dome growth at Soufrière Hills continued at a reduced rate or ceased.
Fresh deposits were evident at the head of Tyres Ghaut to the NW, the upper parts of Farrell's Plain and Tuitt's Ghaut to the N, and the upper parts of the Tar River Valley to the E. Pyroclastic activity was ongoing on the E and NE sides of the dome during 27 April-4 May and pyroclastic flows were observed in the Tar River Valley and on Farrell's plain, into Tuitt's Ghaut.
 

During 13-20 April, visual observations suggested that lava-dome growth at Soufrière Hills continued at a reduced rate. Material originating from the lava dome’s growing E-facing shear lobe was shed down the Tar River Valley. Heavy rains resulted in lahars in several drainages 16-17 April. During 18-20 April, a gas plume drifted N and NE and a bluish haze containing sulfur dioxide was observed flowing down the N flanks due to light winds coming from the S.
 

Over the past days, lava-dome growth at Soufrière Hills was reduced or possibly paused. Small, intermittent pyroclastic flows occurred in the Tar River Valley.

View of the lava dome (photo taken on 29 March 2007, courtesy of Eric Tomme)

The lava dome at Soufrière Hills continues to grow, mainly on its NE side. Over the past week, pyroclastic flows mainly affected the sector from the ENE to the NW of the dome and traveled intermittently E down the Tar River Valley. Small flows (<500 m in length) occurred NW in Tyres Ghaut, and one flow was observed at the top of Farrell's Plain.

During 2-9 March, lava-dome growth at Soufrière Hills continued and was concentrated on an E-facing lobe topped with blocky, spine-like protrusions. Rockfalls affected the E and NE flanks. Pyroclastic flows traveled 2 km and were confined E in the Tar River Valley. Heightened pyroclastic activity on 7 March resulted in an ash plume that rose to an estimated 2.4 km (8,000 ft) a.s.l. and drifted W. On 11 March, a pyroclastic flow traveled down the NE flank into White's Ghaut. On 12 March, a large, blocky spine leaned steeply towards the NE.