Montserrat Volcano Observatory

Daily Report
Report for the period 5 p.m. 24 September
to 5 p.m. 25 September 1998

Activity at the volcano was low again today. The seismic network recorded 5 rockfall signals over the past 24 hours.

Observations of the dome today showed that steam and ash venting is still elevated within the July 3rd scar above the Tar River valley. There is also considerable steam venting on the northern side of the dome from the site of the dome collapse event on 19th September and there is also steam venting on the south eastern flanks of the dome.

The miniCOSPEC was used today from the Police launch to assess the flux of sulphur dioxide from the volcano. The average flux was calculated at 1340 tonnes per day. This is higher than it has been for some weeks and is probably due in part to the increased level of venting observed since yesterday's dome collapse.

MVO staff today began the process of re-installing the seismometers and other essential field equipment brought in before Hurricane Georges. This work will continue for the next few days.

Residents of Montserrat should continue to check Radio ZJB in case of further sudden developments in the state of the volcano.

Montserrat Volcano Observatory