Kamchatka and the Kuriles volcanoes: Erupting or Restless
KVERT Information Release
 (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA)
 (2) Issued:20210411/0700Z
 (3) Volcano:Karymsky (CAVW #300130)
 (4) Current aviation colour code:ORANGE
 (5) Previous aviation colour code:orange
 (6) Source:KVERT
 (7) Notice Number:2021-48
 (8) Volcano Location:N 54 deg 2 min E 159 deg 26 min
 (9) Area:Kamchatka, Russia
(10) Summit Elevation:1486 m (4874.08 ft)
(11) Volcanic Activity Summary:According to Tokyo VAAC data, and satellite data by KVERT, explosions sent ash up to 4 km a.s.l. at 05:45 UTC on 11 April. Ash plume continues to drift to the south-east of the volcano.

A moderate explosive-effusive eruption of the volcano continues. Ash explosions up to 8-9 km (23,000-29,500 ft) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
(12) Volcanic cloud height:3500-4000 m (11480-13120 ft) AMSL Time and method of ash plume/cloud height determination: 20210411/0545Z – Himawari-8
(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 67 km (42 mi)
Direction of drift of ash plume/cloud of the volcano: SE / azimuth 140 deg
Time and method of ash plume/cloud determination: 20210411/0630Z – Himawari-8
Start time of explosion and how determined: 20210411/0545Z – Satellite data
(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.

CITATION GUIDELINES


For formal scientific citation of this VONA/KVERT Information Release, please use the following:
VONA/KVERT Information Release, April 11, 2021. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2021-48.
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