KVERT scientists is available in the office from 8:30 AM till 6:00 PM (KST) in the work days and by phone during the evenings.

VONA/Kamchatkan and Northern Kuriles Volcanic Activity

Issued: 20120314/0415Z

VOLCANO: BEZYMIANNY (1000-25)

Current AVIATION COLOR CODE: YELLOW

Previous AVIATION COLOR CODE: ORANGE

Source: KVERT

Notice Number: 20-12

Volcano Location: 55°58'N, 160°36'E;

Area: Kamchatka, Russia

Summit Elevation: 9,496 ft (2,895 m)

Prognosis of Volcanic Activity: Activity of the volcano continues: a viscous lava flow is effusing on the lava dome flank. Ongoing activity could affect low-flying aircraft.

Volcanic Activity Summary: Activity of the volcano decreased significantly after explosive eruption on March 08. According to video data, strong gas-steam emissions of the volcano were observing on March 09-13. Strong degassing indicates effusion of a viscous lava flow on the southern lava dome flank. A thermal anomaly over the lava dome continues to noting at satellite images.

Volcanic cloud height: No ash

Other volcanic cloud information: No ash

Remarks: Bezymianny volcano is one the most active volcano of the world. In 1955, for the first time in history, Bezymianny started to erupt and after six months it produced a catastrophic eruption with the total volume of eruptive products over 3 km3. The lava dome began to grow in the explosive caldera immediately after the catastrophe and continues at now. 42 Vulcanian-type strong explosive eruptions of Bezymianny occurred in 1965-2011, while 20 of them producing ash up to 10-15 km a.s.l. Last explosive eruption occurred on April 13, 2011.

Contacts:
Dr. Olga Girina, Head of KVERT, IVS FED RAS
E-mail: girina@kscnet.ru
Tel. (4152) 29-78-90

Next Notice: A new VONA will be issued if conditions change significantly or the Aviation Color Code is changes. VONAs are posted at http://www.kscnet.ru/ivs/kvert/index_eng.php


The KVERT Project is a cooperative program of the Institute of Volcanology and Seismology (IVS) FED RAS and the Kamchatkan Branch of Geophysical Survey (KB GS) RAS since 1993. KVERT scientists was available in the office from 8:30 AM till 6:00 PM (KST) 7 days in week in 2005-2011. Now KVERT scientists is available in the office from 8:30 AM till 6:00 PM (KST) in the work days and by phone during the evenings. KVERT (IVS FED RAS) analyses daily satellite imagery; information from remote scientific observation stations; real-time seismic data for 11 Kamchatkan volcanoes (data from KBGS RAS); 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=kaminfo