(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
(2) Issued: | 20250204/0151Z |
(3) Volcano: | Sheveluch (CAVW #300270) |
(4) Current aviation colour code: | ORANGE |
(5) Previous aviation colour code: | orange |
(6) Source: | KVERT |
(7) Notice Number: | 2025-13 |
(8) Volcano Location: | N 56 deg 38 min E 161 deg 18 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 extrusive-effusive eruption of the Young Sheveluch volcano and the extrusive eruption of the 300 years RAS lava dome continue. The growth of the lava domes is accompanied by powerful gas-steam activity. According to satellite data by KVERT a large gas-steam plume with some amount of ash is extending for 20 km to the east of the volcano. An extrusive-effusive eruption of the Sheveluch volcano continues. The danger of ash explosions up to 10 km (32,800 ft) a.s.l. remains. Ongoing activity could affect international and low-flying aircraft. |
(12) Volcanic cloud height: | 3500 m (11480 ft) AMSL Time and method of ash plume/cloud height determination: 20250204/0145Z – Video data |
(13) Other volcanic cloud information: | Distance of ash plume/cloud of the volcano: 20 km (12 mi) Direction of drift of ash plume/cloud of the volcano: E / azimuth 93 deg Time and method of ash plume/cloud determination: 20250204/0046Z – NOAA-20 15m16 |
(14) Remarks: | |
(15) Contacts: | Dmitry V. Melnikov, IVS FEB RAS [email protected] 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/. 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 VONA/KVERT Information Release, please use the following: VONA/KVERT Information Release, February 04, 2025. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2025-13. |