Government Information Service

The Volcanic Explanation
For The 24 Hour Period Ending 7 AM On Saturday March 22, 1997
A Presentation Of The Government Information Services
In Conjunction With The MVO.

The current alert level is AMBER

The level of activity at the Soufriere Hills Volcano has increased due to rockfalls and pyroclastic flows from the ever growing dome.

There was an earthquake swarm yesterday which ended just before lunch time these comprised hybrid and volcanic - tectonic events and were followed by rockfalls.

The dome was extremely clear over the past 24 hours and scientists managed to take a close look at it. The pyroclastic flows had gone down the north-east face of the dome towards Long Ground and also down the southern face towards Perches Mountain. Scientists also noted that the shape of the dome has changed somewhat over the last few days.

Evidence goes to show that the northern part of the dome is moving outwards slightly towards Tuitt's Ghaut and this is because the weight of the dome is pushing the wall northwards. The height of the dome is now 3144 feet above sea level, much higher than Chances Peak.

A GPS survey was carried out from the Police Launch on the depth of water around the pyroclastic fan deposits at the mouth of the Tar River Valley. Results will be released later.

The dome continues to grow and is becoming very steep and unstable, everyone is urged to remain vigilent.

Government Information Service