Montserrat Volcano Observatory


Morning Report
Report for the period 4 pm 10 July
to 7 am 11 July 1997

The alert level system has been revised by zones


Activity at the volcano since yesterday has again been dominated by rockfall signals, some of which have produced small ash clouds. The cyclic pattern in the tilt and seismicity established several weeks ago is now barely discernible. There was no visible activity associated directly with the tilt cycle, and rockfalls and pyroclastic flows can now occur at any time.

People are reminded that mudflows can be extremely hot if recent deposits are remobilised by heavy rain. The current area of activity in the crater still makes Mosquito Ghaut and Gages the most likely pathways for pyroclastic flows and surges, but further flows in Tuitt's or Tar River are possible. The Belham River valley is also dangerous and should not be entered. Access to Plymouth is completely restricted, and people should stay completely away from the flanks of the volcano. Everyone should continue to stay alert, and listen to Radio Montserrat for any announcements.


Montserrat Volcano Observatory