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VOLCANO OBSERVATORY NOTICE TO AVIATION (VONA) WMRA01 RUVX 192359 VONA DTG: 20260619/2359Z VOLCANO: SHEVELUCH 300270 PSN: N5638 E16119 AREA: RUSSIAN FEDERATION SOURCE ELEV: 2500M AMSL NOTICE NR: 2026/19 CURRENT COLOUR CODE: ORANGE PREVIOUS COLOUR CODE: ORANGE SVO: KVERT ACT STS: ERUPTION ONGOING ONSET: NIL DUR: NIL VA CLD HGT: NO VA CLD PRODUCED HGT SOURCE: NO VA CLD PRODUCED MOV: NO VA CLD PRODUCED CTC: OLGA A. GIRINA, IVS FEB RAS, TEL: +79622825253, GIRINA@KSCNET.RU, KVERT.FEBRAS.NET RMK: NO NEW ASH EXPLOS HAVE BEEN OBS ON VOLCANO AT NOW, BUT LAST ASH EXPLOS UP TO 10 KM ASL (START 1600 Z) WAS NOTED ON 17 JUN, VA CLD MOV 1400 KM NE ON 17-18 JUN. EXTRUSIVE ERUPTION OF VOLCANO CONT. ASH EXPLOS UP TO 12 KM ASL COULD OCCUR AT ANY TIME. NXT NOTICE: A NEW VONA WILL BE ISSUED IF COND CHANGE SIGNIFICANTLY OR IF THE COLOUR CODE CHANGES. |
CITATION GUIDELINES For formal scientific citation of this KVERT/VONA, please use the following: KVERT Volcano Observatory Notice for Aviation (VONA). июня 19, 2026. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://kvert.febras.net/van/?vn=92. |
| Aviation Colour Codes |
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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. |
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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] |
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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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UNASSIGNED There is insufficient information available to assess the current status of the volcano or volcanic activity. |
