(1) KVERT VOLCANIC ACTIVITY NOTICE (VAN)
 (2) Issued:20260704/0258Z
 (3) Volcano:Sheveluch (CAVW #300270)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:red
 (6) Source:KVERT
 (7) Notice Number:2026-61
 (8) Volcano Location:N 56 deg 38 min E 161 deg 19 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:3283 m (10768.24 ft), the dome elevation ~2500 m (8200 ft)
(11) Volcanic Activity Summary:The explosive-extrusive eruption of the volcano continues, accompanied by powerful gas-steam activity; a new block of lava continues to grow in the northern part of the lava dome. No new ash explosions have been observing on the volcano at now, but at 01:50 UTC on 04 July an ash cloud 80x55 km in size was located 195 km to the northwest of the volcano (from ash explosions up to 10.5 km a.s.l. at 20:05 UTC on 03 July). The ash clouds from ash explosions up to 11 km a.s.l. at 08:54 UTC on 02 July continues to observing on satellite images. The edge of a northern part of ash cloud was 385 km (azm 328) of the volcano, and the edge of a southern part of ash cloud was 984 km (azm 162) of the volcano at 01:50 UTC on 04 July.

The explosive-extrusive eruption of the volcano continues. Ash explosions up to 12 km (39,400 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:NO ASH CLOUD PRODUCED
(13) Other volcanic cloud information:NO ASH CLOUD PRODUCED
(14) Remarks:
(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS, girina@kscnet.ru, +74152202044

Duty scientist: +79622825253
(16) Next Notice:A new Notice will be issued if conditions change significantly or the colour code is changed. Notices are posted at http://kvert.febras.net.

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.

CITATION GUIDELINES

For formal scientific citation of this KVERT Volcanic Activity Notice, please use the following:
KVERT Volcanic Activity Notice, июля 04, 2026. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://kvert.febras.net/van/?n=2026-61.
Aviation Colour 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]

UNASSIGNED

There is insufficient information available to assess the current status of the volcano or volcanic activity.