Montserrat Volcano Observatory


Morning Update
Report for the period 16:00 17 October
to 07:00 18 October 1996


Activity at the volcano has continued at about the same level as yesterday. Small to moderate sized rockfall signals are the most frequent seismic events with some volcano-tectonic earthquakes and hybrid events also occurring. Six volcano-tectonic earthquakes occurred overnight; these were located at depths of about 1 to 4 km beneath the volcano. Tremor has been intermittent on the Gages station for most of the night with one period of continuous tremor between 22:10 and 02:00.

No clear view were obtained of the volcano this morning due to low cloud cover.

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