The level of activity has remained elevated overnight. A swarm of hybrid earthquakes began at 1.30am and was followed by a number of pyroclastic flows which travelled down the northern flanks of the volcano. By 6.30am this morning the level of activity had declined somewhat although there was still some ash venting from the volcano.
The wind direction has changed overnight, it is now blowing towards the west. Most of the ash generated overnight was deposited in the Plymouth area.
Pyroclastic flows can now get into the Belham Valley easily and the next collapse may send pyroclastic flows to the Belham Bridge and beyond. Topography suggests that the Belham valley may be quickly filled with deposits allowing flows to impact upon Old Towne and Friths areas and associated surges could get to Salem. With pressurisation of the dome and collapses, the possibilities of explosive events is increased. The southern part of Montserrat is thus extremely dangerous and all areas south of the Nantes River should be evacuated. All residents of Montserrat should be vigilant and listen to Radio Montserrat for further information. Ash masks should be worn at all times in ashy conditions.