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The Volcanic Explanation
For The 24 Hour Period Ending 7 AM On Monday May 12, 1997
A Presentation Of The Government Information Services
In Conjunction With The MVO.

The current alert level is AMBER

Over the last 24 hours there has been over 100 rockfalls / small pyroclastic flows from the dome of the Soufriere Hills Volcano, this is similar to the previous reporting period.

Long period earthquakes also continue, during the last week there were more of these recorded by the seismic network than at any other time within the last 12 months. Some of these earthquakes lead to rockfalls and they are caused, it is thought, by gas movement within the volcano.

The visibility continues to be poor but yesterday (Sunday) a few pyroclastic flows were seen to be going down the Tar River Valley.

Some additional GPS surveys were continued yesterday to double check those taken on the previous day. Results will be announced later today.

Yesterday, scientists visited the Tar River Valley to install and check equipment that checks the temperature of pyroclastic flows.

The alert level remains at AMBER, and everyone is advised that the Tar River Valley and White River Valley are extremely dangerous and should not be visited at all.

Ash is being blown around by the wind in the Plymouth area and everyone is urged to wear their dust masks if visiting this area.

Government Information Service