Aviation color codes
Volcanic danger prognosis for aviation (in Russian)
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KVERT/Volcano Observatory Notification to Aviation (VONA)

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 (2) Issued:20151127/2200Z
 (3) Volcano:Zhupanovsky (CAVW #300120)
 (4) Current Aviation Color Code:ORANGE
 (5) Previous Aviation Color Code:green
 (6) Source:KVERT
 (7) Notice Number:2015-210
 (8) Volcano Location:N 53 deg 35 min E 159 deg 8 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:9702.24 ft (2958 m)
(11) Volcanic Activity Summary:Ash plume up to 285 km to the east from the volcano was observed on satellite images.

Aerosol plumes and sometimes aerosol-ash plumes could affect low-flying aircraft.
(12) Volcanic cloud height:16400-19680 ft (5000-6000 m) a.s.l. Time and method of ash plume/cloud height determination: 20151127/1637Z – MODIS AQUA (31m32)
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 177 mi (285 km)
Direction of drift of ash plume/cloud of the volcano: E / azimuth 96 deg
Time and method of ash plume/cloud determination: 20151127/1637Z – MODIS AQUA (31m32)
(14) Remarks:
(15) Contacts: Alexander G. Manevich, IVS FEB RAS +74152298441

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

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.


For formal scientific citation of this VONA/KVERT Information Release, please use the following:
VONA/KVERT Information Release, November 27, 2015. KVERT, Institute of Volcanology and Seismology FEB RAS. URL:

Aviation Color Codes

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.

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.

Volcano is exhibiting heightened unrest with increased likelihood of eruption.


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

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


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

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