Government Information Service

The Volcanic Explanation
For The 24 Hour Period Ending 7 AM On Wednesday March 19, 1997
A Presentation Of The Government Information Services
In Conjunction With The MVO.

The current alert level is AMBER

The activity at the Soufriere Hills Volcano has lowered in the last 24 hours. Yesterdays earthquake swarm lasted until 4 pm and since then there have only been a few seismic events and very few rockfalls.

Some new pyroclastic flows went over the Galways Wall and the run out from these is extending down the valley. As there is no burning of vegetation with these flows it is thought to be "cold" material from older sections of the dome.

COSPEC measurements taken on MOnday and the results issued yesterday (Tuesday) show sulphur dioxide content in the atmosphere of 317 tonnes per day - a low figure.

A helicopter survey of the dome was possible yesterday and scientists confirm the dome is still growing and is very unstable.

Residents entering unsafe zones are asked to remain Vigilent, the alert level remains at AMBER.

Government Information Service