KVERT ИВиС ДВО РАН

(1) KVERT VOLCANIC ACTIVITY NOTICE (VAN) (2) Issued: 20260817/0408Z (3) Volcano: Klyuchevskoy (CAVW #300260) (4) Current aviation colour code: ORANGE (5) Previous aviation colour code: orange (6) Source: KVERT (7) Notice Number: 2026-88 (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 summit explosive eruption of Strombolian type (lava fountaining in the volcano crater) continues. And сollapses of pyroclastic rocks from the Apakhonchich chute sides also continue. The ash plume is extending for 420 km to the southeast of the volcano. The eruption of the volcano continues. Ongoing activity could affect low-flying aircraft. (12) Volcanic cloud height: 6000 m (19680 ft) AMSL Time and method of ash plume/cloud height determination: 20260817/0350Z – Video data (13) Other volcanic cloud information: Distance of ash plume/cloud of the volcano: 420 km (261 mi) Direction of drift of ash plume/cloud of the volcano: ESE / azimuth 111 deg Time and method of ash plume/cloud determination: 20260817/0300Z – 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.