| (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
| (2) Issued: | (20210513/0058Z) |
| (3) Volcano: | Ukinrek Maars (VNUM #312131) |
| (4) Current Color Code: | GREEN |
| (5) Previous Color Code: | UNASSIGNED |
| (6) Source: | Alaska Volcano Observatory |
| (7) Notice Number: | 2021/A249 |
| (8) Volcano Location: | N 57 deg 50 min W 156 deg 30 min |
| (9) Area: | Alaska Peninsula |
| (10) Summit Elevation: | 299 ft (91 m) |
| (11) Volcanic Activity Summary: | Communications with seismic stations in the Ukinrek Maars area have been reestablished allowing the Alaska Volcano Observatory to resume locating earthquakes and detecting unrest at these volcanoes. The aviation color code is now GREEN and the Volcano Alert Level is now designated as NORMAL. |
| (12) Volcanic cloud height: | n/a |
| (13) Other volcanic cloud information: | n/a |
| (14) Remarks: | |
| (15) Contacts: | Michelle Coombs, Scientist-in-Charge, USGS mcoombs@usgs.gov (907) 786-7497 David Fee, Coordinating Scientist, UAF dfee1@alaska.edu (907) 322-4085 |
| (16) Next Notice: | A new VAN will be issued if conditions change significantly or alert levels are modified. While a VAN is in effect, regularly scheduled updates are posted at http://www.avo.alaska.edu |