Activity at the Soufrière Hills Volcano has been low this week.

The seismic network recorded seven rockfalls and two volcano-tectonic events.

The average sulphur dioxide measurement was 305 tons per day, with a maximum of 397 and a minimum of 206 tons per day, a decrease on previous weeks.

Cloudy weather this week prevented any clear views of the dome.

There were two small lahars (mudflows) in the Belham valley in the early hours of 24 and 26 April respectively. These just reached the lower crossing from Isles Bay Plantations to Garibaldi Hill. Lahars occurred at the same time in several other valleys draining the volcano. Further lahars are now more likely as the dry season comes to an end.

Despite the low level of activity, sporadic pyroclastic flows can and do 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.

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