November 02, 2020. EN . Russia / Kurile Islands : Ebeko , Ecuador : Sangay , Indonesia : Semeru , Guatemala : Pacaya .
November 02 , 2020.
Russia / Kurile Islands , Ebeko :
VOLCANO OBSERVATORY NOTICE FOR AVIATION (VONA) .
Issued: November 02 , 2020
Volcano: Ebeko (CAVW #290380)
Current aviation colour code: ORANGE
Previous aviation colour code: orange
Notice Number: 2020-201
Volcano Location: N 50 deg 41 min E 156 deg 0 min
Area: Northern Kuriles, Russia
Summit Elevation: 3791.68 ft (1156 m)
Volcanic Activity Summary:
A moderate eruptive activity of the volcano continues. According to visual data by volcanologists from Severo-Kurilsk, explosion sent ash up to 3.5 km a.s.l., an ash cloud is drifting to the east of the volcano.
This eruptive activity continues. Ash explosions up to 19,700 ft (6 km) a.s.l. could occur at any time. Ongoing activity could affect low-flying aircraft and airport of Severo-Kurilsk.
Volcanic cloud height:
9840-11480 ft (3000-3500 m) AMSL Time and method of ash plume/cloud height determination: 20201102/0152Z – Visual data
Other volcanic cloud information:
Distance of ash plume/cloud of the volcano: 3 mi (5 km)
Direction of drift of ash plume/cloud of the volcano: E
Time and method of ash plume/cloud determination: 20201102/0152Z – Visual data
Source : Kvert .
Photo : S. Lakomov , 28/10/2020 .
Ecuador , Sangay :
SUNDAY NOVEMBER 1, 2020
The Geophysical Institute of the National Polytechnic School reports that:
Since the afternoon / evening of November 1, the SAGA seismic station has recorded an increase in the number of explosions that occur at the Sangay volcano. This type of activity is similar to that observed throughout the eruptive period since May 2019. These events could be associated with other significant phenomena such as slight ash falls and / or a remobilization of materials accumulated on the flanks of the volcano.
The Geophysical Institute of the National Polytechnic School is keeping an eye on the activity of the volcano and will report on any changes that may be recorded.
DAILY REPORT OF THE STATE OF THE SANGAY VOLCANO, Sunday November 01, 2020.
Surface activity level: High, Surface trend: Increasing.
Internal activity level: High, Internal trend: Increasing.
Seismicity: From October 31, 2020, 11:00 am to November 01, 2020, 11:00 am:
Long period type events: 6
Emission tremor: 3
Rains / lahars:
No rains were recorded in the area.
** In case of heavy rains, lahars can be generated in the Volcán, Upano rivers and other tributaries **
Emission / ash column: Gas emissions with moderate ash content were observed up to 700 meters above crater level in an easterly direction.
Washington VAAC reported no broadcasts
Other monitoring parameters: FIRMS recorded 1 thermal alert, MIROVA reported 1 high thermal alert and 1 moderate thermal alert in the last 24 hours.
Observations: The volcano sector cleared early this morning, the rest of the time it remained cloudy.
Alert level: yellow.
Sources : INSTITUT GÉOPHYSIQUE / ÉCOLE NATIONALE DE POLYTECHNIQUE.
Photos : John Arellano , EFE.
Indonesia , Semeru :
Level of activity at level II (WASPADA). G. Semeru (3,676 m above sea level) is continuously erupting. Explosive and effusive eruptions, causing lava flows towards the south and south-eastern slopes, as well as projections of incandescent rocks around the summit crater are observed. The last eruption occurred on November 1, 2020 with an unobserved eruption column height.
The volcano was clear until it was covered in fog. Smoke from the crater was not observed. The weather is sunny / rainy, the winds weak to the North, East, South and South-West. Air temperature 21-28 ° C
According to the seismographs of November 1, 2020, it was recorded:
45 eruption / explosion earthquakes.
11 earthquakes of emissions
3 distant tectonic earthquakes
1 flood signal
1. The community must not carry out activities within a radius of 1 km and in an area of up to 4 km in the sector of the South-South-East slopes of the active crater which is the area of the active opening of the Mount Semeru (Jongring Seloko) crater as a hot cloud slide channel.
2. Pay attention to the presence of the lava dome in the Jongring Seloko crater.
VOLCANO OBSERVATORY NOTICE FOR AVIATION – VONA.
Issued : November 01 , 2020
Volcano : Semeru (263300)
Current Aviation Colour Code : ORANGE
Previous Aviation Colour Code : orange
Source : Semeru Volcano Observatory
Notice Number : 2020SMR111
Volcano Location : S 08 deg 06 min 29 sec E 112 deg 55 min 12 sec
Area : East java, Indonesia
Summit Elevation : 11763 FT (3676 M)
Volcanic Activity Summary :
Eruption with volcanic ash cloud at 22h19 UTC (05h19 local).
Volcanic Cloud Height :
Best estimate of ash-cloud top is around 13363 FT (4176 M) above sea level, may be higher than what can be observed clearly. Source of height data: ground observer.
Other Volcanic Cloud Information :
Ash cloud moving to north
Seismic activity is characterized by eruption, avalanche and gas emission earthquakes
Source : PVMBG , Magma Indonésia .
Photo : Oystein Lund Andersen , Septembre 2017 .
Guatemala , Pacaya :
Due to the night and morning weather conditions, the visibility of the Mackenney Cone and its crater was limited. Weak explosions ejecting volcanic material have been observed sporadically at heights of up to 100 meters above the crater. Due to the strong wind, it was not possible to hear any sound associated with this activity. We observe a white and blue degassing fumarole (water vapor and magmatic gases), which rises slightly and moves up to 1 km towards the South.
The lava flows on the southwest flank are still active, the main one measuring around 600 meters long with a branch 75 meters long. The PCG and PCG5 stations recorded weak explosions and tremors due to the rise of magma and gases towards the surface. The generation of new lava flows or the emission of ash columns in the hours or days to come is not excluded. The recommendations of the special BEPAC bulletin n ° 104-2020 remain valid.
Source : Insivumeh .
Photo : Berner Villela Fotografía via Sherine France .