(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
(2) Issued: | (20120302/2017Z) |
(3) Volcano: | Kanaga (CAVW# 1101-11-) |
(4) Current Color Code: | GREEN |
(5) Previous Color Code: | yellow |
(6) Source: | Alaska Volcano Observatory |
(7) Notice Number: | 2012/A4 |
(8) Volcano Location: | N 51 deg 55 min W 177 deg 9 min |
(9) Area: | Aleutians Alaska |
(10) Summit Elevation: | 4288 ft (1307 m) |
(11) Volcanic Activity Summary: | The level of unrest at Kanaga Volcano has declined to background levels and AVO is reducing the Aviation Color Code and Volcano Alert Level to Green/Advisory. A brief period of elevated seismicity and an associated minor ash emission were detected on February 18. A minor increase in seismicity also occurred on February 24, but had no confirmed associated ash emission. Since then the level of unrest has declined to background levels. |
(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 Steve McNutt, Coordinating Scientist, UAF steve@giseis.alaska.edu (907) 474-7131 |
(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 http://www.avo.alaska.edu |