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Volcanic activity worldwide 4 Nov 2020: Popocatépetl volcano, Semeru, Ibu, Reventador, Sangay, Sina...

Ebeko (Paramushir Island): (3 Nov) Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ERUPTION AT 20201103/2121Z FL050 EXTD S REPORTED OBS VA DTG:03/2120Z

Sakurajima (Kyushu, Japan): (4 Nov) The Japan Meteorological Agency (JMA) reported that vulcanian activity continues from the crater producing frequent moderate ash emissions.
An ash plume reached 9,400 ft (2,865 m) altitude and drifted SE.
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Increasingly larger plume rising from the crater can be seen in the image.
The warning bulletin states that ballistic impacts of volcanic bombs and pyroclastic flows could affect an area of about 2 km distance from the main crater.


Suwanose-jima (Ryukyu Islands): Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report: ACTIVITY CONT. VA AT 20201104/1800Z FL040 EXTD W OBS VA DTG:04/1750Z

Ibu (Halmahera, Indonesia): (4 Nov) Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Darwin warned about a volcanic ash plume that rose up to estimated 6000 ft (1800 m) altitude or flight level 060 and is moving at 10 kts in SW direction.
The full report is as follows: intermittent emissions to fl060 mov ssw last obs at 03/2320 to 6000 ft (1800 m)

Sinabung (Sumatra, Indonesia): Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: MINOR VA ACTIVITY REPORTED AT 04/1324Z.

Semeru (East Java, Indonesia): (4 Nov) Volcanic Ash Advisory Center Darwin (VAAC) issued the following report: VA REPORTED TO FL140 MOV S AT 04/0052Z OBS VA DTG:04/0120Z

Ruapehu (North Island): GeoNet reported that the activity at Crater Lake (Te Wai ā-moe) is characterized by a heating-cooling cycle. In late September the lake had cooled to around 12 °C marking the low point of the cycle. Since mid-October the lake has been warming slowly and has now reached 22 °C.
Chemical analysis of lake water collected on 9 October showed no significant changes in the makeup of the lake waters since the previous sample collected on 9 August. The pH remains at 0.8, having ranged between 0.7 and 0.9 over the last 6 years. Other key chemical indicators such as the respective water concentrations in Mg (magnesium) and Cl (chloride) can be used to track whether the uprising fluids travel through new fractures or in the proximity of magma.
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These observations say that underlying vent areas are open to volcanic gases and geothermal fluids entering the lake and reacting with rock in the vents.
The level of volcanic tremor intensity has been variable but has remained weak during the past three months, and small earthquakes continue to be detected near the volcano.


Popocatépetl (Central Mexico): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 22000 ft (6700 m) altitude or flight level 220 .
The full report is as follows: NEW VA EMS MOV W to 22000 ft (6700 m)

Sangay (Ecuador): Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 .
The full report is as follows: ONGOING VA EMS MOV SE to 20000 ft (6100 m)

Reventador (Ecuador): Volcanic Ash Advisory Center Washington (VAAC) issued the following report: VA EMS HAS DISP

Sabancaya (Peru): Volcanic Ash Advisory Center Buenos Aires (VAAC) issued the following report: INTERMITTENT EMISSIONS

Copahue (Chile/Argentina): According to SERNAGEOMIN the activity of the volcano continues at low levels characterized by continuing ash emissions from the crater.
Emissions of steam, gases with minor ash content occurred and reached approx. 10,000 ft (3,048 m) altitude.
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Seismicity continues at low levels.

Volcano Activity Summary for 4 Nov 2020:

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