VOLKAM18 EXERCISE EXERCISE EXERCISE VOLKAM18 EXERCISE EXERCISE \n\n (1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) (2) Issued:20180419/2231Z (3) Volcano:Khangar (CAVW #300272) (4) Current aviation colour code:RED (5) Previous aviation colour code:green (6) Source:KVERT (7) Notice Number:2018-0001 (8) Volcano Location:N 54 deg 45 min E 157 deg 24 min (9) Area:Kamchatka, Russia (10) Summit Elevation:6560 ft (2000 m)(11) Volcanic Activity Summary:A strong explosive eruption of Khangar volcano began at 22:15 UTC on April 19, 2018. According to satellite data, ash is reaching 25,000 ft (7.6 km) a.s.l. and ash plume is drifting to the northwest of the volcano on the height 25,000 ft (7.6 km) a.s.l. at this time. Ash emission is continuing.\n\nA strong explosive eruption of the volcano continues. Ongoing activity could affect international and low-flying aircraft. (12) Volcanic cloud height:24928-24928 ft (7600-7600 m) AMSL Time and method of ash plume/cloud height determination: 20180419/2215Z – NOAA 18 (4m5)(13) Other volcanic cloud information:Distance of ash plume/cloud of the volcano: 19 mi (30 km)\nDirection of drift of ash plume/cloud of the volcano: NW / azimuth 310 deg \nTime and method of ash plume/cloud determination: 20180419/2215Z – NOAA 18 (4m5)\nStart time of explosion and how determined: 20180419/2215Z – Satellite data(14) Remarks:This strong explosive eruption is extremely hazardous for aircraft downwind. There are not known historical eruptions of Khangar. According to tephrachronological data, last explosive eruptions of this volcano occurred for about 4100, 2500, 1000 and 400 years ago. Khangar is not monitored with a seismic station. KVERT uses satellite data and sometimes visual observations by hikers and pilots reports to monitor this volcano.(15) Contacts:Dr. Olga A. Girina, Head of KVERT, IVS! FEB RAS\ngirina@kscnet.ru +74152202044\n\nDuty 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/index_eng.php.\n\nIn 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.VOLKAM18 EXERCISE EXERCISE EXERCISE VOLKAM18 EXERCISE EXERCISE \n\n