(1) VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) | |
(2) Issued: | 20180912/2315Z |
(3) Volcano: | Sarychev Peak (CAVW #290240) |
(4) Current aviation colour code: | YELLOW |
(5) Previous aviation colour code: | green |
(6) Source: | KVERT |
(7) Notice Number: | 2018-83 |
(8) Volcano Location: | N 48 deg 5 min E 153 deg 12 min |
(9) Area: | Central Kuriles, Russia |
(10) Summit Elevation: | 4906.88 ft (1496 m) |
(11) Volcanic Activity Summary: | Activity of the volcano Sarychev Peak increased. According to visual data from Matua Island, explosions sent ash up to 3-4 km a.s.l. at 19:03 UTC on 12 September. An ash cloud drifted to the south-east from the volcano. At 21:00 UTC an ash cloud 5.5x6 km in size moved for about 121 km to the south-east from the volcano. Later the ash cloud was not observed. Activity of the volcano increased. Strong ash explosions could occur at any time. |
(12) Volcanic cloud height: | 9840-13120 ft (3000-4000 m) AMSL Time and method of ash plume/cloud height determination: 20180912/1903Z – Visual data |
(13) Other volcanic cloud information: | Distance of ash plume/cloud of the volcano: 75 mi (121 km) Direction of drift of ash plume/cloud of the volcano: SE / azimuth 127 deg Time and method of ash plume/cloud determination: 20180912/2100Z – Himawari-8 |
(14) Remarks: | A thermal anomaly over the volcano is noting sometimes from 07 May, 2018. Last moderate ash explosion of the volcano Sarychev Peak occurred on 11 August 2018. |
(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/index_eng.php. 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, September 12, 2018. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2018-83. |