Montserrat Volcano Observatory

Daily Report
Report for the period 5 p.m. 28 January 1999
to 5 p.m. 29 January 1999

The level of activity was low during the reporting period. There were 10 rockfalls and 23 volcano-tectonic earthquakes.

Good visibility enabled further surveying of the dome to take place today. Surveying took place from observation points at Fergus Mountain, Whites, Bramble airport and Garibaldi Hill.

This afternoon the tiltmeter on Gages Mountain was removed. This station has not produced reliable data for some time. Two tiltmeters continue to produce data, these are at Hermitage and Long Ground. Part of the recovered telemetry kit from Gages Mountain will be used to set up a rain gauge.

The sulphur dioxide flux was measured this afternoon using the miniCOSPEC, the results will be reported tomorrow. The gas plume from the volcano was also studied today using 'FTIR' or Fourier Transform Infrared Spectroscopy. This technique enables ratios of gases in the plume to be determined, the results from this study will also be reported shortly.

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