The seismic network recorded three volcano-tectonic earthquakes this week.
Measurements of the SO2 flux were made using the helicopter on 13 June. A total of nine traverses beneath the plume were carried out, with an average SO2 flux of 161 tonnes per 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 can be 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 1. There is no public access to Zone V, including Plymouth. Maritime Zones E and W are daytime transit only between sunrise and sunset (boats may sail through the zone but must not stop). Anyone who ignores these restrictions is liable to be prosecuted.
This report along with additional information on the Soufrière Hills Volcano and the Hazard Level System can be found at the MVO website: www.mvo.ms. You can also follow @mvoms on both Facebook and Twitter.