During 18-19 October, rockfalls and small pyroclastic flows continued to be detected. On 22 December, the Hazard Level was increased to 4 due to the repeated occurrences of pyroclastic flows in the lower part of Tyers Ghaut. A pyroclastic flow in Plymouth also split into two as it diverted around Round Hill, with a pyroclastic surge traveling over the top of the hill.The two lobes of this W-traveling pyroclastic flow traveled almost to the sea, with one reaching the old Police headquarters and the other reaching the Pentecostal Church and the old Government House.
Pause 5 began on 12 February 2010, and as of March 2014 was over 50 months long.MVO established three criteria that indicate the potential for future activity. During this event, instruments for measuring dome volume were damaged. Pyroclastic flows began to travel into the Tar River Valley, with a moderate-sized flow occurring at 0653. Lava-dome growth was directed to the NE, with frequent rockfalls and small pyroclastic flows sending material to a sector extending from the central Tar Valley on the E flank to the NE flanks above Tuitt's Ghaut.
The seismic network recorded one rockfall and one volcano-tectonic earthquake. Fort Ghaut in Plymouth and Mosquito Ghaut were completely filled, and Tuitt's and White's Ghauts were partially filled, resulting in fans advancing into towns. Similar to the previous several months, during February and March ash clouds were produced by rock avalanches. On 11 September, the collapse of an over-hanging lava lobe produced pyroclastic flows NE down the Tar River valley. Visual observations reported that the explosion removed the small dome that had grown in the collapse scar in late July 2003, as well as a portion of the NW remnant of the 1995-1998 dome. The source of continuous rockfalls with small pyroclastic flows extended from the 15 May chute on the E to the margin of the September 1996 scar on the NW.
EDM measurements to the Lees reflector were not possible due to ash cover and airborne ash.A series of accuracy tests were carried out with GPS-laser binoculars from a helicopter to assess their suitability for dome mapping. As a result, abundant pyroclastic flows traveled NE down Tuitt's Ghaut on 23 November for the first time in several weeks.
Some of these falls generated small pyroclastic flows with accompaning ash clouds that drifted W. Incandescence was observed at night from the active areas of the 20 January dome and gullies in the October dome.
The Hazard Level remained at 3.
Gas samples taken in late July from fumaroles at Tar River and Galway's were unchanged from 1989. These traveled down the dome's N and NW sides, towards Farrell's wall, which deflected them E toward the Tar River valley. Earthquakes in the second swarm were markedly larger than those in the first. Ash venting and roaring noises originated from an area above Gages to the SW, where a new blocky lobe was visible. The sulfur-dioxide flux averaged 410 metric tons per day and ranged between 300 and 550 metric tons per day.During 17-24 December, six hybrid earthquakes and one volcano-tectonic earthquake were recorded by the seismic network at Soufrière Hills. and drifted W. The first two events generated plumes above the Tar River Valley possibly from small pyroclastic flows.
Convincing theories require baseline data over a considerably longer time period.Activity at Soufriere Hills has been high over recent months, culminating in the collapse of a major dome and explosive activity during 12-13 July 2003. There were no significant changes in gas composition compared with earlier samples; the gas was dominated by COThe following condenses the weekly Scientific Reports of the Montserrat Volcano Observatory (MVO) for the period 2 November-8 December 1996.Throughout the second week of the month there was intense steaming from the area around Castle Peak. However, the sick and bedridden were to remain at shelters. It also recorded 11 rockfalls and one explosion. The vent situated in the Gages Wall is still active, with minor explosive activity seen during an observation flight on 19 September.