AVO can no longer seismically monitor the following volcanoes because of seismic station outages. As a result, AVO is unable to (1) assess whether these volcanoes may be building towards an eruption and (2) quickly confirm or dismiss reports of activity at these volcanoes.
Veniaminof
Aniakchak
Fourpeaked
Korovin
Because these volcanoes are no longer seismically monitored, they will move from volcano alert level Normal and aviation color code Green to "unassigned". They will likely remain without real-time seismic monitoring until next summer, when necessary upgrades at these and other networks will occur. As at other volcanoes without real-time seismic networks, AVO will continue to use satellite data and reports from pilots and ground observers to detect signs of eruptive activity.
Current located earthquake counts at Veniaminof volcano, updated daily, Monday through Friday. The red line gives a running count, with the total count being where the line hits the y-axis on the right side of the image. Click for larger image.
Veniaminof portion of weekly Updates and periodic Information Releases.