November 20, 2015. EN. Sinabung, Tungurahua, Popocatepetl .

Home / blog georges Vitton / November 20, 2015. EN. Sinabung, Tungurahua, Popocatepetl .

November 20, 2015. EN. Sinabung, Tungurahua, Popocatepetl .

November 20, 2015.


Sinabung, Indonesia :


 Mount Sinabung in Karo regency, North Sumatra, erupted forcefully once again on Wednesday and may threaten the opening of the Lake Toba Festival by Tourism Minister Arief Yahya in Berastagi, also in Karo, slated for Thursday. No casualties were reported following the eruption, but pyroclastic flows drifting to the southeast affected a number of villages that have long been abandoned by residents.



The current wind direction is directed to the southwest, but if it blows to the east the Lake Toba Festival will be disrupted as the spread of ash would reach Berastagi, » Mt. Sinabung Observation Station staff member Deri Hidayat told The Jakarta Post.Deri said the volcano discharged the clouds at 1:47 a.m. and 9:28 a.m. He added the pyroclastic clouds, which drifted as far as 3.5 kilometers, affected Bekerah and Simacem villages.

He said both villages had long been left empty as they were inside a designated danger zone.Deri added that Mt. Sinabung had also emitted volcanic ash to a height of 2,000 meters toward the southwest. He said the spread of ash could disrupt the Lake Toba Festival if the wind changed direction in coming days.He said volcanic activity could increase within the week, adding that the volcano could discharge a bigger volume of pyroclastic flows and ash. « The biggest eruption took place on Tuesday, when the volcano discharged pyroclastic clouds 13 times, compared to only twice today, » said Deri.



According to him, the potential for pyroclastic flows remained great due to a lava dome buildup on the southeastern section of the peak.Deri said the lava dome could collapse anytime and trigger huge pyroclastic flows.Consequently, added Deri, his office had recommended that the regional administration evacuate human settlements within the danger zone.

Source : Asia one

Photo : Sadrah Peranginangin, Theger Bre Meliala



Tungurahua, Ecuador :

Strombolian activity at Tungurahua volcano

On the night of 17 and the morning of November 18 was registered a further increase in the activity of the Tungurahua volcano. This activity was characterized by the emission of water vapor columns with a moderately high load of ash that reached a height of 3km and moved towards the northwest. Within hours of the night, incandescence was observed in the crater with the expulsion of ballistic material reaching a height of 500m and falling to 500 m on the sides without affecting populated areas.



Between 2:10 and 3:30 strombolian activity has become more intense than in the last 24 hours, accompanied by a strong emission of ash. The  technicians at the volcano Tungurahua Observatory (OVT) received several reports of ash fall from the volcano surrounding towns such as Pillate, Cotaló, Chontapamba, Chonglontus, Chacauco and Cusúa and in the cantons of Tisaleo, Quero, Cevallos, Mocha and Pelileo, in the province of Tungurahua. Right now a constant steam emission was observed with a moderate load of ash towards the northwest.


Source : IGEPN

Photo : Santiago Santamaria – OVT



Popocatepetl, Mexico:


19.023°N, 98.622°W
Elevation 5426 m

CENAPRED reported that during 11-17 November the seismic network at Popocatépetl recorded 30-62 daily emissions; 102 and 88 were detected on 14 and 16 November, respectively. Variable nighttime crater incandescence was observed on some days. The seismic and acoustic network registered explosions almost daily. Ash plumes rose from the crater on 12 November; ash plumes rose 2 km on 17 November and incandescent material was deposited on the flanks within 1 km of the crater. Daily gas plumes drifted SW and NW. The Alert Level remained at Yellow, Phase Two.


November 19, 11:00 h (November 19, 17:00 GMT)

In the last 24 hours the seismic records of the surveillance system at Popocatépetl volcano registered on the one hand 92 low-intensity exhalations. Also was recorded one explosion at 01:50 h today. The cloudy conditions not allowed to observe the volcano continuously, but a weak emission of steam and gas was observed that winds carried southwesterly .
Along some lapses of the night was observed slight incandescence, increasing when main exhalations .

From dawn and up to the time of this report it has been noticed a faint but not stopping emission of steam and gas that winds blow about southwest .


Photo : F Adris Miranda.

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