Montserrat Volcano Observatory


Morning Report
Report for the period 16:00 10 February
to 07:00 11 February 1997
The current alert level is ORANGE


Volcanic activity has remained at a very low level for most of the reporting period, with a few very small rockfalls from the dome. Another periodic swarm of volcano-tectonic earthquakes, the most dominant feature of the volcanic activity in recent months, started at 4:02 am this morning and was on the decline at 6:45 am. This swarm was more intense than the last in the almost daily sequence. This type of activity is likely to be followed by a sequence of hybrid earthquakes which may trigger an increase in rockfalls and attendant small production by mid morning.

The crater area is obscured by cloud, so no observations have been possible so far.

The eastern side of dome is still steep and unstable. Further pyroclastic flows could occur with little or no prior indication. Residents are therefore reminded to remain alert and responsible at all times. This includes traveling with protective gears such as ash masks at all times, spending the minimum possible time in the evacuated zones and being prepared to take recommended action when advised. The Tar River and upper Galway's areas are extremely dangerous, and should not be entered under any circumstances. Zone E, which includes Corkhill and the airport, remains safe at this time.


Montserrat Volcano Observatory