Volcanic Activity Report 28 December 2012 To 4 January 3013

SOUFRIERE HILLS VOLCANO (MVO) — Activity at the Soufrière Hills Volcano is low.

The seismic network recorded two volcano-tectonic earthquakes this week.

Sulphur dioxide measurements for the week gave an average flux of 404 tonnes/day with a maximum of 910 and a minimum of 192 tonnes/day.

Pyroclastic flows can occur at any time without warning on any side of the volcano, including Gages from where they can travel rapidly into Plymouth. Tracks across the Belham valley are frequently destroyed or heavily modified by flash flooding or lahars, and caution should be exercised crossing the valley during and after rainfall.

The Hazard Level is 2. There is no access to Plymouth or Zone V. There is daytime access (8:00 am to 4:00 pm) to Zone C. Maritime zone W remains daytime transit only (boats may sail through the zone but must not stop).

By Roderick Stewart