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The Volcanic Explanation
For The 24 Hour Period Ending 7 AM On Saturday May 31, 1997
A Presentation Of The Government Information Services
In Conjunction With The MVO.

The current alert level is ORANGE

The level of activity at the Soufriere Hills Volcano has been fairly low over the last 24 hours.

There have been about 100 rockfall signals, plus a few hybrid and long period earthquakes recorded on the seismic network. Most of the rockfalls were from the eastern and northern face of the dome.

Yesterday (Friday) scientists went by helicopter to look at Tuitt's Ghaut. Some pyroclastic flow material was seen at the top of the Ghaut and spreading down it for about 400 yards, causing trees to burn. Some lava blocks have also fallen into Mosquito Ghaut showing that the entire eastern face of the dome is active.

COSPEC runs carried out yesterday to measure the amounts of sulphur dioxide gas in the atmosphere produced results of 750 tonnes per day, this is the average for the week.

For most of yesterday and again this morning (Saturday) the dome is in cloud, but as we write it is just begining to clear and hopefully there will be better views later.

The alert level is ORANGE and no one should visits Zone A and B, and only short day time visits are permitted to Zone C for those with a rapid means of exit. Motorists should not use the central corridor as a route to the airport.

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