Montserrat Volcano Observatory

Daily Report
Report for the period 5 p.m. 25 January 1999
to 5 p.m. 26 January 1999

The level of activity was low again during the reporting period. There were 6 rockfalls, 6 volcano-tectonic earthquakes and 3 hybrid earthquakes.

Very clear conditions today permitted spectacular views of the dome. The gully that cuts through the dome was clearly visible, as were the fumaroles that are aligned along this gully. The fumaroles were emitting steam and gases throughout the day.

A theodolite and photographic survey of the southern part of the dome was completed from observation sites at Perches Mountain and Galways Mountain. The survey results will be processed over the coming days to generate a map of the southern sector of the dome.

Measurements with the miniCOSPEC this morning showed an average daily sulphur dioxide flux of 791 tonnes per day.

Residents of Montserrat are advised to keep listening to ZJB Radio Montserrat for information in case of any changes in the state of the volcano.

Montserrat Volcano Observatory