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klyuchevskaya sopka facts

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and drifted NE. On 15 October 2012 the volcano had a weak eruption that stopped the following day. According to a news report, a lava flow from Kliuchevskoi melted a large section of Ehrman glacier. The Aviation Color Code was lowered to Green. The volcano is part of the natural Volcanoes of Kamchatka UNESCO World Heritage Site. Two days later at 0216, two weak plumes seemed to be emerging from the area, perhaps one from Kliuchevskoi and one from Bezymianny. Although obscured by weather clouds a short distance ENE of the volcano, it formed a distinct cold area on the infrared image, indicating that it was at relatively high altitude. The Aviation Color Code level was lowered to Yellow.KVERT reported that during 3-10 December seismic activity at Kliuchevskoi was slightly above background levels. and drifted 105 km SSE. On 27 July at 2200, the gas-and-ash plume was as high as 5 km above the crater, extending to the S for an unknown distance. On 27 December KVERT reported that the explosive eruption at Kliuchevskoi had finished; the last strong explosion was detected on 17 December. GMS satellite imagery showed ash ~565 km SE moving at ~140 km/hour. Analysis of satellite imagery revealed a large daily thermal anomaly in the crater during 21-28 November. It was photographed from 115 … The Aviation Color Code remained at Orange.KVERT reported that during 7-14 December video footage and satellite imagery showed Strombolian explosions at Kliuchevskoi, along with crater incandescence and gas-and-steam emissions. Moreover, there are several volcanologist's huts/bases that can be used. Strombolian activity ejected tephra 70-100 m above the crater during 28-30 September. Physically go to a location that can be identified on the map.

On 24 October an airline pilot reported an ash plume at ~6,800 m altitude extending to the NNE. However, the origin for the high levels may, at least in part, have been due to other active volcanoes in the area.At the beginning of July, the Aviation Color Code (ACC) remained at Orange (the second highest level on a four-color scale).
The Aviation Color Code level remained at Orange. Mudflows and lava flows continued to advance on the NW flank. Gas-and-steam plumes sometimes contained small amounts of ash. During the middle of December 2006, KVERT noticed a slight increase in seismicity, with moderate fumarolic activity. They were greater than M 1.25 and at depths of ~30 km. A weak thermal anomaly was detected over the volcano during 25 and 29-30 March. The Level of Concern Color Code remained Orange.KVERT reported that seismic activity at Kliuchevskoi was above background levels during 14-21 November and Strombolian activity continued. Consistent with the lava flows and the spatter from strombolian eruptions, satellite images consistently showed thermal anomalies over the volcano.On 15 February, a series of explosions generated ash plumes that rose to an altitude of 8 km, prompting KVERT to raise briefly the Aviation Color Code to Red. The Aviation Color Code remained at Orange (the second highest level on a four-color scale).KVERT reported that a thermal anomaly over Klyuchevskoy was identified in satellite images on 25 and 28 May. As a result, the Color Code was increased to Yellow.During 31 May-7 June ~20 earthquakes occurred daily at a depth of ~30 km (table 3). On 20 March separate gas and steam explosions occurring at a rate of 2-3 per hour rose 500 m above the crater. In early July, weak intermediate-depth earthquakes were recorded at a rate of 14-36/day; tremor was in the 14-24 hours/day range.Weak fumarolic activity from the central crater was observed throughout June and early July. Beginning at 1514 on 2 January, a series of shallow earthquakes began to be detected. Seismicity was above background and continuous spasmodic volcanic tremor tended to increase slowly and consistently.

No activity has been reported since then.A Space Shuttle photograph on 29 April at 1248 shows a plume, apparently containing ash, rising about 1 km above the summit and extending about 15 km downwind. On 9, 10, and 11 October, gas-and-steam plumes with little ash rose to 0.5-1.5 km above the volcano's crater and extended more than 10 km E. Similar plumes on 12 and 16 October extended more than 46 km and 50 km to the E and NE, respectively. Satellite imagery analyses showed a large and intense daily thermal anomaly over the volcano and two lava flows descending the W and SW flanks from the summit crater. The volcano is part of the natural UNESCO World Heritage Site Volcanoes of Kamchatka. The Aviation Color Code was raised to Yellow (the second lowest level on a four-color scale).On 12 September KVERT reported that activity at Klyuchevskoy had continued to decrease. Strombolian activity ejected material 300 m above the crater and lava continued to flow down the flanks. and drifted E during 25-26 April.
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