Montserrat Volcano Observatory

Morning Update
Report for the period 16:00 16 October to 07:00 17 October 1996

Activity at the volcano has increased slightly overnight, with five moderate rockfalls recorded. Several smaller rockfalls also occurred. The rockfalls are getting larger and slightly more frequent, suggesting that the October 1 dome is becoming more unstable. No explosive signals were recorded overnight.

There have been three volcano-tectonic earthquakes, located at depth of about 2 km beneath the crater. Tremor levels have been quite high at times at the Gages seismic station.

The volcano is very cloudy this morning, and so no views of the crater have been possible.

The volcano remains in a highly dangerous condition. The October 1 dome continues to grow at a high rate, and further pyroclastic flows are likely. These could trigger another explosive eruption with very little warning. All residents of Montserrat are urged to exercise caution while visiting the evacuated zone and to become familiar with the new alert system and evacuation procedures. The Tar River and Long Ground areas are extremely dangerous, and people entering them face a high risk of death.

Montserrat Volcano Observatory