(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) |
(2) Issued: | 20210221/0033Z |
(3) Volcano: | Klyuchevskoy (CAVW #300260) |
(4) Current aviation colour code: | YELLOW |
(5) Previous aviation colour code: | yellow |
(6) Source: | KVERT |
(7) Notice Number: | 2021-28 |
(8) Volcano Location: | N 56 deg 3 min E 160 deg 38 min |
(9) Area: | Kamchatka, Russia |
(10) Summit Elevation: | 4750 m (15580 ft) |
(11) Volcanic Activity Summary: | According to satellite data from the VolSatView Information System, a flank eruption (lateral break) began to form on the northwestern slope of Klyuchevskoy volcano at about 11:30 UTC on 20 February, 2021, and the eruption continues. A bright incandescence over the flank eruption began to observe from 15:23 UTC on 20 February at video-data by IVS FEB RAS. Probably a lava flow began to move from a lateral break. The flank eruption form on the altitude about 2.5-2.7 km a.s.l. near the Erman glacier. There is a real danger of mud flows for the Klyuchi Village. KVERT continues to monitor Klyuchevskoy volcano.
A moderate gas-steam activity of the volcano continues. The danger of ash explosions up to 19,700-23,000 ft (6-7 km) a.s.l. remains. Ongoing activity 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: | Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS girina@kscnet.ru +74152202044
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. |