(2) Issued:(20130329/2013Z)
(3) Volcano:Ukinrek Maars (CAVW# 1102-131)
(4) Current Color Code:UNASSIGNED
(5) Previous Color Code:green
(6) Source:Alaska Volcano Observatory
(7) Notice Number:2013/A6
(8) Volcano Location:N 57 deg 50 min W 156 deg 30 min
(9) Area:Alaska Peninsula Alaska
(10) Summit Elevation:299 ft (91 m)
(11) Volcanic Activity Summary: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.

Ukinrek Maars
Little Sitkin

Because these volcanoes are no longer seismically monitored, they will move from volcano alert level Normal and aviation color code Green to "unassigned." As at other volcanoes without real-time seismic networks, AVO will continue to use satellite data, infrasound, and reports from pilots and ground observers to detect signs of eruptive activity.
(12) Volcanic cloud height:Unknown
(13) Other volcanic cloud information:Unknown
(14) Contacts:
John Power, Scientist-in-Charge, USGS
jpower@usgs.gov (907) 786-7497

Jeff Freymueller, Coordinating Scientist, UAFGI
jeff.freymueller@gi.alaska.edu (907) 378-7556
(15) Next Notice:A new VONA will be issued if conditions change significantly or alert levels are modified. While a VONA is in effect, regularly scheduled updates are posted at