The seismicity during the period under review was very low. Activity was dominated by the near continuous occurrence of low amplitude broadband tremor which was recorded only by the Gages seismic station. This broadband tremor is interpreted as being due to increased steam emission from the crater area. One small volcano-tectonic earthquake was located beneath the Soufriere Hills volcano at a depth of less than 1 km.
EDM measurements were made today on the lines from White's Yard and Long Ground to Castle Peak, and the Farrell's - St. George's Hill - Windy Hill triangle. No significant change within the errors of the technique was noted from previous occupations.
Visual observations of the crater were made from the helicopter during most of the day. The major new spine reported yesterday is situated almost in the central part of the area of dome growth within English's Crater and appears to have grown considerably since the brief glimpse yesterday. The height of this new spine is about 841 metres above sea level, that is approximately 20 metres higher than Castle Peak.