Montserrat Volcano Observatory


Morning Report
Report for the period 16:00 23 May
to 07:00 24 May 1997
The current alert level is ORANGE


The pattern of volcanic activity continues, with more hybrid earthquakes and small pyroclastic flows. The latest hybrid earthquake swarm began at about 8:30 pm last night, and this was followed by a period of sustained pyroclastic flow activity which lasted until about 3:30 am. The volcano has been quiet since then, although there are occasional pyroclastic flows resulting in ash clouds.

The wind direction is from the east-south-east this morning, so further pyroclastic flow activity may result in ash fall in the safe zone. The volcano is cloudy again this morning.

Volcanic activity remains concentrated on the north side of the dome, and the gap between the dome and the top of the northern wall is gradually being filled in. This means that pyroclastic flows down Mosquito, Tuitt's and White's Ghaut are becoming more likely, and these areas are now very dangerous. Visits to the central corridor should be restricted to those that are absolutely essential, and it should not be used as a route to the airport. The Tar River and Long Ground areas are extremely dangerous, and should not be entered.


Montserrat Volcano Observatory