Kamchatkan and Northern Kuriles Volcanic Activity KVERT INFORMATION RELEASE 23-09 Sunday, April 26, 2009, 21:25 UTC (Monday, April 27, 10:25 KDT) KAMCHATKA: SHEVELUCH: RED SHEVELUCH VOLCANO: 56°38'N, 161°19'E; Elevation 3,283 m, the dome elevation ~2,500 m CURRENT LEVEL OF CONCERN COLOR CODE IS RED Seismic activity of the volcano slightly decreased but continues to remain at high levels. A continuous spasmodic volcanic tremor and series of weak shallow events continue to registering at volcano at present. Current activity of Sheveluch volcano can be viewed here: http://www.kscnet.ru/ivs/kvert/current/shv/index.html According to video data, moderate ash explosions continue to occur at the lava dome of the volcano. Ash continuously appears from a big fissure on the lava dome southern flank. Ash plumes extend to the east-north-east from the volcano on the height about 4 km ASL. According to satellite images, an ash plume extended to the ENE at 19:26 UTC on April 26. A big stripe of meteorological clouds obscured the northern area from Sheveluch volcano and probably a part of ash plumes too. Possibly an activity of the volcano will increase and ash explosions > 10 km (> 32,800 ft) ASL could occur. The activity of the volcano could affect international and low-flying aircraft. http://www.kscnet.ru/ivs/kvert/current/shv/index.html IF YOU HAVE ANY QUESTIONS OR CONCERNS, PLEASE CONTACT: Dr. Olga Girina, KVERT, IVS FED RAS E-mail: girina@xxxxxxxxx Tel. (41522) 58627 Tatiana Kozhevnikova, KVERT, KB GS RAS E-mail: ssl@xxxxxxx Tel. (41522) 59523 Dr. Tom Murray, Scientist-in-Charge, USGS E-mail: tlmurray@xxxxxxxx Tel. 907-786-7497 The Kamchatkan Volcanic Eruption Response Team (KVERT) is a non-commercial cooperative program of the Alaska Volcano Observatory (AVO, USA), the Institute of Volcanology and Seismology (IVS) FED RAS and the Kamchatkan Branch of Geophysical Survey (KB GS) RAS (Russia). KVERT staff is available in the office from 8:30 AM till 6:00 PM (KST or KDT) and by phone during the evenings. KVERT uses daily satellite imagery, information from remote scientific observation stations, real-time seismic data for 10 volcanoes, and other information to monitor activity at Kamchatkan and Northern Kuriles Volcanoes. The official web-page of KVERT (the Institute of Volcanology and Seismology FED RAS): http://www.kscnet.ru/ivs/kvert/index_eng.php Archive of daily information KB GS RAS: ftp://emsd.iks.ru/pub/DATA/RTS/Volcanoes KVERT Information Releases at the web-page of AVO (Alaska Volcano observatory): http://www.avo.alaska.edu/activity/avoreport.php?view=kaminfo9 ============================================================== To unsubscribe from the volcano list, send the message: signoff volcano to: listserv@xxxxxxx, or write to: volcano-request@xxxxxxxx To contribute to the volcano list, send your message to: volcano@xxxxxxxx Please do not send attachments. ==============================================================
