Eruption at Klyuchevskoy, volcanic ash to 6 km (20 000 feet) a.s.l., Russia

A moderately strong eruption took place at Russian Klyuchevkoy volcano at 23:15 UTC on December 29, 2019. The Aviation Color Code remains at Orange. The volcano belongs to the Klyuchevskaya group of volcanoes, it is located 30 km (18 miles) from Klyuchi and 360 km (223 miles) from Petropavlovsk-Kamchatsky.

The eruption ejected volcanic ash up to 6 km (20 000 feet) above sea level, according to the Tokyo VAAC.

Ash plume is extending to the ESE and was at a distance of 130 km (81 miles) from the volcano at 02:00 UTC on December 30, KVERT said.

Ash explosions up to 7 km (23 000 feet) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft.

Klyuchevskaya group by Copernicus EU/Sentinel-2 on December 24, 2019

A weak thermal anomaly was identified in satellite images from December 12 to 15 and 17. Strombolian activity was visible from December 13 to 15 and on December 17. Gas-and-steam plumes rose to 5 - 5.5 km (16 400 - 18 000 ft) a.s.l. and drifted 45 km (28 miles) NE on December 14 and 19. 

The nearest community is the village of Klyuchi. Ash falls are frequently observed there during eruptions.

Geological summary

Klyuchevskoy (also spelled Kliuchevskoi) is Kamchatka's highest and most active volcano. Since its origin about 6 000 years ago, the beautifully symmetrical, 4 835-m-high (15 862 feet) basaltic stratovolcano has produced frequent moderate-volume explosive and effusive eruptions without major periods of inactivity. It rises above a saddle NE of sharp-peaked Kamen volcano and lies SE of the broad Ushkovsky massif.

More than 100 flank eruptions have occurred during the past roughly 3 000 years, with most lateral craters and cones occurring along radial fissures between the unconfined NE-to-SE flanks of the conical volcano between 500 m and 3 600 m (1 640 - 11 811 feet) elevation.

The morphology of the 700-m-wide (2 296 feet) summit crater has been frequently modified by historical eruptions, which have been recorded since the late-17th century. Historical eruptions have originated primarily from the summit crater, but have also included numerous major explosive and effusive eruptions from flank craters. (GVP)

Featured image: Klyuchevskoy on July 4, 2019. Credit: V. Davydova, M.V. Lomonosov MGU, IVS FEB RAS Geoportal


Bright fireball explodes over Germany and Poland

January 11, 2020

A bright fireball streaked through the night sky over eastern Germany and Poland at around 03:05 UTC on January 5, 2020. The event was captured on two AMS/AKM cameras. There is a possibility some pieces of the object survived and ended somewhere in far western...

At least 50 killed, 283 000 affected as cold wave sweeps through Bangladesh

January 02, 2020

Nearly 283 000 people have been affected by different cold-related diseases across Bangladesh and at least 50 have died from November 1 to December 28, 2019. Health officials are advising people to wear warm clothes especially in the morning and in the evening....

Severe hailstorm triggers blackouts in Chiang Rai, Thailand

December 30, 2019

A sudden, severe storm caused widespread blackouts and left several homes damaged in three districts of Thailand's northern province of Chiang Rai on Saturday night, December 28, 2019. The storm also led to traffic after trees were knocked down along the Chiang...

Increased seismicity, alerts raised for Pavlof volcano, Alaska

December 28, 2019

Seismic activity at Pavlof volcano, Alaska has increased over the past several days, forcing the Alaska Volcano Observatory to raise the Alert Level to Advisory and the Aviation Color Code to Yellow at 20:43 UTC on December 28, 2019. Pavlof is a snow- and...

Powerful winter storm in the Four Corners will move across the Plains to the Upper Midwest this weekend

December 27, 2019

A potent winter storm will swing from the Four Corners Friday, December 27, 2019, across the Central Plains to the Upper Midwest this weekend. Areas of heavy snow, blowing snow and freezing rain are forecast on the cold side of the storm. On the warm side, isolated...


Comments

No comments yet. Why don't you post the first comment?

Post a comment

Your name: *

Your email address: *

Comment text: *

The image that appears on your comment is your Gravatar