(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) |
(2) Issued: | 20221126/0433Z |
(3) Volcano: | Alaid (CAVW #290390) |
(4) Current aviation colour code: | ORANGE |
(5) Previous aviation colour code: | orange |
(6) Source: | KVERT |
(7) Notice Number: | 2022-183 |
(8) Volcano Location: | N 50 deg 51 min E 155 deg 33 min |
(9) Area: | Northern Kuriles, Russia |
(10) Summit Elevation: | 2339 m (7671.92 ft) |
(11) Volcanic Activity Summary: | An explosive activity of the volcano continues. Satellite data by KVERT showed an ash plume extended about 220 km to the south-east of the volcano.
A moderate eruptive activity of the volcano continues. Ash explosions up to 6 km (20,000 ft) a.s.l. could occur at any time. 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: 20221126/0321Z – JPSS-1 15m16 |
(13) Other volcanic cloud information: | Distance of ash plume/cloud of the volcano: 220 km (137 mi) Direction of drift of ash plume/cloud of the volcano: SE / azimuth 133 deg Time and method of ash plume/cloud determination: 20221126/0321Z – JPSS-1 15m16 |
(14) Remarks: | |
(15) Contacts: | Dmitry V. Melnikov, IVS FEB RAS dvm@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/.
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. |