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Plosky Tolbachik Volcano. KVERT/Volcano Observatory Notifications to Aviation (VONA)

Информация Камчатской группы реагирования на вулканические извержения (Kamchatkan Volcanic Eruption Response Team – KVERT)



 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20140131/0014Z
 (3) Volcano:Plosky Tolbachik (CAVW #1000-24-)
 (4) Current Aviation Color Code:GREEN
 (5) Previous Aviation Color Code:yellow
 (6) Source:KVERT
 (7) Notice Number:2014-05
 (8) Volcano Location:N 55 deg 49 min E 160 deg 23 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:10118.8 ft (3085 m)
(11) Volcanic Activity Summary:Weak seismic activity of the area of Plosky Tolbachik volcano and Tolbachinsky Dol continues to registering. Volcanic tremor was not recording only from September 25 till November 19, 2013; but episodes of tremor are noting till the present time. Video data showed no incandescences at the northern area of Tolbachinsky Dol last months. Gas-steam activity of cones of Tolbachik Fissure Eruption by 50-years of IVS FED RAS (so-called S. Naboko cones) is observing sometimes. Satellite data continues to show a weak thermal anomaly over the northern area of Tolbachinsky Dol because lava flows keep heat long time.

Aerosol and gas-steam plumes at the northern area of Tolbachinsky Dol could affect low-flying aircraft. KVERT will continues to monitor Tolbachik volcano.
(12) Volcanic cloud height:NO ASH CLOUD PRODUCED
(13) Other volcanic cloud information:NO ASH CLOUD PRODUCED
(14) Remarks:Tolbachik Fissure Eruption by 50-years of IVS FED RAS began on November 27, 2012, and probably its active phase was finishing in September 2013.
(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 Operative Report, please use the following:
VONA/KVERT Operative Report, Январь 31, 2014. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2014-05.

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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