Seismic activity and dust levels at all monitoring sites were again low today.
Between 16:00 yesterday and 16:00 today there were 52 hybrid, 14 long-period, 2 volcano-tectonic earthquakes and 46 distinct rockfall signals. Three of these rockfalls were triggered by hybrid events and four of them by long period events. Most of these event occurred throughout the day. However, there were two periods of enhanced earthquake activity between 7:00 and 10:00 pm last night and between 12:00 and 2:30 pm this afternoon which consisted of a mixture of very small hybrid earthquakes and rockfall signals. The second period was followed by a prolonged period of low amplitude tremor which coincided with a pronounced ash venting episode. The interval between the peaks in seismicity has remained at about 14 hours.
Clear views of the volcano today indicate that dome growth continues in the Galways area of the crater above the White River. A few of the rockfalls was seen by a team of observers from the Old Towne area and it confirmed that most of the rockfall activity is also concentrated in that general area. The gaps between the dome and the shoulder at Gages and the Tar River valley is now quite small. Large amounts of steam and other volcanic gases continue to be emitted from the back of the scar on the northern and eastern parts of the dome behind Chances Peak ion the area of the new growth. A few of the rockfalls was seen by a team of observers from the Old Towne area and it confirmed that most of the rockfall activity is in the Galways area.
Residents are reminded to remain alert and listen to ZJB radio.