Montserrat Volcano Observatory

Morning Report
Report for the period 4 pm 21 July
to 7 am 22 July 1997

The alert level system has been revised by zones

The volcano has continued with about the same level of activity as yesterday. The only seismic signals currently being recorded are small to moderate amplitude rockfall signals. Further rockfalls and moderate pyroclastic flows can be expected later today, and may occur in any direction at any time.

The volcano cleared sufficiently at about 5:00 am today to allow three chutes of incandescent material to be clearly visible from the MVO. These were observed to originate from the top of the dome above the Gages valley, Mosquito Ghaut and further east. The volcano is overcast this morning but prospects look good for clear views later during the day.

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 the exclusion zone 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