Government Information Service

The Volcanic Explanation
For The 24 Hour Period Ending 7 AM On Saturday, January 18, 1997
A Presentation Of The Government Information Services
In Conjunction With The MVO.

The activity over the last 24 hours at the Soufriere Hills Volcano has decreased with much fewer rockfall signals recorded.

However other seismic activity has included 14 long period earthquakes, and over 20 volcano - tectonic earthquakes as well as a mud flow signal very early this morning (Saturday)

Visual inspections were made of the dome both from the helicopter and the ground over the last 24 hours they show that the dome remains unstable. The scars left by pyroclastic flows from earlier in the week are already being filled in by new material.

This morning the visibility is very poor due to low cloud cover but any further pyroclastic flows are expected to go down the Tar River Valley.

If the pyroclastic flows are large enough, they could cause a major dome collapse leading to an explosive event similar to the one in mid September.

The alert remains at ORANGE and the W.H. Bramble Airport is open. Residents are being urged to keep clear of the Long Ground and Tar river Valley areas as they are extremely dangerous.

Government Information Service