(2) Issued:20190628/0732Z
 (3) Volcano:Raikoke (CAVW #290250)
 (4) Current aviation colour code:GREEN
 (5) Previous aviation colour code:yellow
 (6) Source:KVERT
 (7) Notice Number:2019-107
 (8) Volcano Location:N 48 deg 17 min E 153 deg 15 min
 (9) Area:Central Kuriles, Russia
(10) Summit Elevation:1807 ft (551 m)
(11) Volcanic Activity Summary:The strong explosive eruption of the volcano finished. According to satellite data, the volcano is quiet. Diffused aerosol clouds continue to be located northern of the Pacific Ocean. KVERT continues to monitor the volcano. 

Ongoing activity of the volcano could affect low-flying aircraft.
(12) Volcanic cloud height:NO ASH CLOUD PRODUSED 
(13) Other volcanic cloud information:NO ASH CLOUD PRODUSED
(14) Remarks:
(15) Contacts:Olga A. Girina, IVS FEB RAS girina@kscnet.ru 

Duty scientist: +79622825253
(16) Next Notice:A new VONA will be issued if conditions change significantly or the colour code is changed. 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) FEB 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, June 28, 2019. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2019-107.
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]