VONA/Kamchatkan and Northern Kuriles Volcanic Activity

Volcano: Alaid (CAVW #0900-39-)

Current Aviation Color Code: YELLOW
Previous Aviation Color Code: green

Issued: 20121007/0011Z
Source: KVERT
Notice Number: 2012-16

Volcano Location: 50.86 N, 155.56 E
Area: Northern Kuriles, Russia
Summit Elevation: 7671.92 ft (2339 m)

Prognosis of Volcanic Activity: Activity of the volcano increased. Possibly explosive eruption with ash column height up to 32,800-49,200 ft (10-15 km) a.s.l. Ongoing activity could affect international and low-flying aircraft.

Volcanic Activity Summary: Activity of the volcano increased. There was noted a thermal anomaly over the volcano on the satellite images from 02:00 till 09:30 UTC on October 06. A temperature of the anomaly was 64.4-65.6 degrees of Celsius. According to visual observations from Paramushir Island on October 05, 2012, a large gas-steam column from the whole of the volcanic crater rose up to 200 m above the crater, but a very strong wind was noted at the both Islands.

Volcanic cloud height: No ash cloud at now.

Other volcanic cloud information:

Remarks:

Additional information: The volcano Alaid at the Atlasov Island is located a distance 30 km north-west from Paramushir and 70 km south-west from Kamchatka. The stratovolcano belongs to the Somma-Vesuvius type. The central scoria cone with the height of 250 m is situated inside summit crater. There are 33 lateral cones on the flanks of the volcano. Alaid exposes high potential hazard to the aircrafts flying over Kamchatka and the Northern Kuriles because its eruptive clouds can rise to a height of 10-15 km a.s.l. and extend for hundreds of kilometers (up to 1500 km) and the duration of eruptions can exeed a few months.
Last eruption occurred on: 1981/4/29

Contacts: Dr. Olga A. Girina, Head of KVERT, IVS FEB RAS
E-mail: girina@kscnet.ru
Tel.: +74152297890

Tel. Duty scientist: +79622825253

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.

In Russia, KVERT, on behalf of the Institute of Volcanology and Seismology (IVS) FED RAS, is responsible for providing information on volcanic activity to international air navigation services for the airspace users.

KVERT scientists was available in the office from 8:30 AM till 6:00 PM (KST) 7 days in week and by phone during the evenings since 2005. KVERT analyses daily satellite imagery (since 2002 till now);
information from remote scientific observation stations; real-time seismic data for 11 Kamchatkan volcanoes (data from the Kamchatkan Branch of Geophysical Survey RAS); and other information to monitor activity at Kamchatkan and Northern Kuriles Volcanoes.

KVERT web-page (the Institute of Volcanology and Seismology FED RAS): http://www.kscnet.ru/ivs/kvert/index_eng.php.
KVERT Information Releases at the web-page of AVO (Alaska Volcano Observatory): http://www.avo.alaska.edu/activity/avoreport.php?view=kaminfo.

CITATION GUIDELINES


For formal scientific citation of this VONA/KVERT Information Release, please use the following:
VONA/KVERT Information Release, October 07, 2012. KVERT, Institute of Volcanology and Seismology FEB RAS. URL: http://www.kscnet.ru/ivs/kvert/van/?n=2012-16.
Aviation Colour Codes

GREEN

Volcano is in normal, non-eruptive state

   or, after a change from a higher level:

Volcanic activity considered to have ceased, and volcano reverted to its normal, non-eruptive state.

YELLOW

Volcano is experiencing signs of elevated unrest above known background levels.    

 or, after a change from higher level:

Volcanic activity has decreased significantly but continues to be closely monitored for possible renewed increase.

ORANGE

Volcano is exhibiting heightened unrest with increased likelihood of eruption.

   or,

Volcanic eruption is underway with no or minor ash emission.
[specify ash-plume height if possible]

RED

Eruption is forecast to be imminent with significant emission of ash into the atmosphere likely.

  or,

Eruption is underway with significant emission of ash into the atmosphere.
[specify ash-plume height if possible]