Thursday, May 17, 2012

Activity at the Soufrière Hills Volcano remains a low level.

The seismic network recorded two rockfalls and five volcano-tectonic (VT) events.

The average sulphur dioxide measurement for six days this week was 484 tons per day, with a maximum of 813 and a minimum of 263 tons per day.

Helicopter observations this week showed that the steep eastern face of the dome remains unstable with large fractures present and future rockfalls and pyroclastic flows are likely from this region.

Despite the low level of activity, sporadic pyroclastic flows will continue to occur without any warning. The Hazard Level is 3. There is no access to the terrestrial Zone C and only daytime transit access to shipping through the maritime extension of the zone.
Category: Weekly reports