April 15 , 2019.

Kamchatka , Sheveluch :

VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA).

Issued: April 15 , 2019 
Volcano:Sheveluch (CAVW #300270)
Current aviation colour code:ORANGE
Previous aviation colour code:orange
Source:KVERT
Notice Number:2019-80
Volcano Location:N 56 deg 38 min E 161 deg 18 min
Area:Kamchatka, Russia
Summit Elevation:10768.24 ft (3283 m), the dome elevation ~8200 ft (2500 m)

Volcanic Activity Summary:
A growth of the lava dome continues (a viscous lava blocks extrude out on the northern part of it), a strong fumarolic activity and an incandescence of the dome blocks and hot avalanches accompanies this process. According to video data, gas-steam activity of the volcano sometimes with ash emission continues.
Explosive-extrusive eruption of the volcano continues. Ash explosions up to 32,800-49,200 ft (10-15 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.

Volcanic cloud height:
13120 ft (4000 m) AMSL Time and method of ash plume/cloud height determination: 20190415/0155Z – Video data

Other volcanic cloud information:
Distance of ash plume/cloud of the volcano: 28 mi (45 km)
Direction of drift of ash plume/cloud of the volcano: S / azimuth 190 deg
Time and method of ash plume/cloud determination: 20190415/0130Z – Himawari-8

Source : Kvert.

Photo : Yu Demyanchuck , volkstat.ru

Indonesia , Kerinci :

VOLCANO OBSERVATORY NOTICE FOR AVIATION – VONA .

Issued: April 13 , 2019 
Volcano: Kerinci (261170)
Current Aviation Colour Code: YELLOW
Previous Aviation Colour Code: yellow
Source: Kerinci Volcano Observatory
Notice Number: 2019KER15
Volcano Location: S 01 deg 41 min 49 sec E 101 deg 15 min 50 sec
Area: Jambi, West Sumatra, Indonesia
Summit Elevation: 12176 FT (3805 M)

Volcanic Activity Summary:
observed brown ash emission at 23h29 UTC (06h29 Local Time)

Volcanic Cloud Height:
Best estimate of ash-cloud top is around 13456 FT (4205 M) above sea level, may be higher than what can be observed clearly. Source of height data: ground observer.

Other Volcanic Cloud Information:
ash Plume moving norteast

Remarks:
Seismicity dominated by continuous volcanic tremor with maximum amplitude of 0.5 – 2 mm (Dominant 1 mm)

Source : Magma Indonesia , PVMBG.

Auteur : Inconnu

Indonesia, Anak Krakatau :

VOLCANO OBSERVATORY NOTICE FOR AVIATION – VONA.

Issued: April 14 , 2019 
Volcano: Anak Krakatau (262000)
Current Aviation Colour Code: ORANGE
Previous Aviation Colour Code: orange
Source: Anak Krakatau Volcano Observatory
Notice Number: 2019KRA50
Volcano Location: S 06 deg 06 min 07 sec E 105 deg 25 min 23 sec
Area: Lampung, Indonesia
Summit Elevation: 502 FT (157 M)

Volcanic Activity Summary:
Eruption with volcanic ash cloud at 02h32 UTC (09h32 local).

Volcanic Cloud Height:
Ash-cloud is not visible

Other Volcanic Cloud Information:
Ash-cloud moving to northeast.

Remarks:
Eruption recorded on seismogram with maximum amplitude 60 mm and maximum duration 43 second.

Source : Magma Indonesia , PVMBG.

Photo : detik.

Guatemala , Santiaguito :

Activity type: Peléan
Morphology: Complex of dacitic domes.
Geographical location: 14 ° 44 ’33 ˝ Latitude N; 91 ° 34’13˝ Longitude O.
Height: 2,500msnm.
Weather : Clear 
Wind: East at 5 km / h
Precipitation: 0.0 mm.

Activity:
Presence of a white degassing at an altitude of 2900 meters which disperses towards the South-East. The seismic stations recorded 22 low explosions in 24 hours which raise white ash columns at a distance of 2900 to 3200 meters with a dispersion towards the South-East, weak and moderate avalanches on the east and south-east flanks. reach the base of the Caliente dome. There are slight falls of fine ash particles in the volcanic perimeter and in the mountainous areas of the Finca San José Ptzulín.

Source : Insivumeh .

Photo : G Vitton