Reports speak of a violent volcanic eruption of Mount Shiveluch on Russia’s Far Eastern Kamchatka Peninsula. Smoke and ash from the volcano have climbed to 10 kilometres, sparking no-fly warnings for the surrounding area. Snow around the crater is rapidly melting, creating mudslides. (TASS/VoiceOfRussia)
Shiveluch volcano. (© Photo: ru.wikipedia.org/NASA/JSC)
SHEVELUCH VOLCANO (1000-27) <56°38'n, 161°19'e; >
AVIATION COLOR CODE IS ORANGE
Explosive-extrusive eruption of the volcano continues. Ash explosions up to 10 km (32,800 ft). ASL could occur at any time. Ongoing activity could affect international and low-flying aircraft.
Moderate seismic activity of the volcano continues. According to seismic data, probably ash plumes rose up to 6.0-7.5 km (19,700-24,600 ft) on October 07-12, and up to 4.5 km (14,760 ft) ASL all week. According to visual data, hot avalanches were observing at the lava dome all week. Ash explosions rose up to 7.0 km (23,000 ft) ASL on October 08; plumes from hot avalanches rose up to 5.0 km (16,400 ft) ASL all week; strong fumarole activity was observing last week. Ash plumes extending about160 km (99 mi) to the eastern directions from the volcano were noted on October 06 and 08, at the satellite images. A thermal anomaly was noting over the lava dome all week.
State of the volcano on October 07, 2011. (Photo by Yu. Demyanchuk.)
SHEVELUCH, KIZIMEN and KARYMSKY: ORANGE
BEZYMIANNY and GORELY: YELLOW
KLYUCHEVSKOY, TOLBACHIK PLOSKY, USHKOVSKY, KORYAKSKY, AVACHINSKY, MUTNOVSKY: GREEN
No seismic data: ICHINSKY, VYSOKY, GAMCHEN, KOMAROV, KRONOTSKY, KRASHENINNIKOV, KIKHPINYCH, TAUNSHITS, MALY SEMYACHIK, ZHUPANOVSKY, OPALA, KSUDACH, ZHELTOVSKY, ILIINSKY, KOSHELEV, KAMBALNY, DIKII GREBEN, KHODUTKA and KHANGAR: GREEN
VONA/KVERT-Project: Sheveluch (1000-27) 20111016/0241Z
Volcano: Sheveluch (1000-27)
Aviation Color Code: Orange
Notice number: 2011/39
Volcano Location: 56�39'N, 161�21'E
Area: Kamchatka, Russia
Summit Elevation (feet/meters): 8202 ft/2.500 m the dome elevation
Height of ash plume (feet/km) ASL and how determined: 9843 ft/ 3.0 km- Visual
Distance of ash plume from the volcano (mi/km): 21.75 mi/35 km
Direction of ash plume or ash cloud drift from the volcano: South-East
Time and method of observation: 20111016/0241Z – NOAA 18 (4m5)
Start time of explosion and how determined: 2011/Z – unknown
Duration of eruption (or indicate eruption is continuing): eruption is continuing
Remarks: A weak narrow gas plume with small amount of ash. According video data a weak gas plume was observed at 03:05 UTC on October 16.
Next Notice: A new VONA will be issued if conditions change significantly. (AVO)
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