KVERT ИВиС ДВО РАН

(1) KVERT VOLCANIC ACTIVITY NOTICE (VAN) (2) Issued: 20260818/2157Z (3) Volcano: Klyuchevskoy (CAVW #300260) (4) Current aviation colour code: ORANGE (5) Previous aviation colour code: orange (6) Source: KVERT (7) Notice Number: 2026-90 (8) Volcano Location: N 56 deg 03 min E 160 deg 39 min (9) Area: Kamchatka, Russia (10) Summit Elevation: 4750 m (15580 ft) (11) Volcanic Activity Summary: The moderate explosive eruption of the volcano continues. According to video data, a gas-steam plume with some amount of ash rose up to 5.5 km a.s.l. Satellite data by KVERT showed a thermal anomaly on the volcano; an ash plume is extending for 290 km to the east-southeast of the volcano. The moderate explosive eruption of the volcano continues. Ongoing activity could affect low-flying aircraft. (12) Volcanic cloud height: 5500 m (18040 ft) AMSL Time and method of ash plume/cloud height determination: 20260818/2040Z – Video data (13) Other volcanic cloud information: Distance of ash plume/cloud of the volcano: 290 km (180 mi) Direction of drift of ash plume/cloud of the volcano: E / azimuth 101 deg Time and method of ash plume/cloud determination: 20260818/2120Z – Himawari-9 14m15 (14) Remarks: (15) Contacts: Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS, girina@kscnet.ru, +74152202044 (16) Next Notice: A new Notice will be issued if conditions change significantly or the colour code is changed. Notices are posted at http://kvert.febras.net. 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.