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KVERT / VOLCANO OBSERVATORY NOTIFICATION TO AVIATION (VONA)

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KVERT/Volcano Observatory Notification to Aviation (VONA)

VONA/KVERT Releases
 
Archives in the old format
VONA/KVERT Information Releases (01.2005-05.2012)

 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20140924/0613Z
 (3) Volcano:Sheveluch (CAVW #300270)
 (4) Current Aviation Color Code:ORANGE
 (5) Previous Aviation Color Code:red
 (6) Source:KVERT
 (7) Notice Number:2014-13
 (8) Volcano Location:N 56 deg 38 min E 161 deg 18 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:10768.24 ft (3283 m), the dome elevation ~8200 ft (2500 m)
(11) Volcanic Activity Summary:Explosive activity of the volcano was finished but ash cloud in size 89x55 mi (144x89 km) continues to move to the north-northeast of the volcano. Satellite data showed this ash cloud was in 14 mi (23 km) of the volcano at 03:48 UTC on September 24. It is necessary to say a part of this ash cloud in size 56x16 mi (90x26 km) is drifting at the height about 29,500 ft (9 km) a.s.l. in the distance about 44 mi (71 km) a.s.l. to the north-east of the volcano.

Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:29520-29520 ft (9000-9000 m) a.s.l.
(13) Other volcanic cloud information:Satellite data showed an ash cloud in size 56x16 mi (90x26 km) is drifting at the height about 29,500 ft (9 km) a.s.l. in the distance about 44 mi (71 km) to the north-east of the volcano.
(14) Remarks:
(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS
girina@kscnet.ru +74152302549

Duty scientist: +79622825253
(16) Next Notice:A new VONA will be issued if conditions change significantly or the Aviation Color Code is changes. VONAs are posted at http://www.kscnet.ru/ivs/kvert/index_eng.php.

In Russia, KVERT, on behalf of the Institute of Volcanology and Seismology (IVS) FED RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users.
   

CITATION GUIDELINES


For formal scientific citation of this VONA/KVERT Information Release, please use the following:
VONA/KVERT Information Release, September 24, 2014. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/index.php?n=2014-13.

Aviation Color Codes
GREEN

Volcano is in normal, non-eruptive state

   or, after a change from a higher level: 

Volcanic activity considered to have ceased, and volcano reverted to its normal, non-eruptive state.
YELLOW

Volcano is experiencing signs of elevated unrest above known background levels. 

   or, after a change from higher level: 

Volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.
ORANGE

Volcano is exhibiting heightened unrest with increased likelihood of eruption.

   or,

Volcanic eruption is underway with no or minor ash emission.
[specify ash-plume height if possible]
RED

Eruption is forecast to be imminent with significant emission of ash into the atmosphere likely.

  or,

Eruption is underway with significant emission of ash into the atmosphere.
[specify ash-plume height if possible]



 
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