November 27, 2015. EN. Papandayan, Semeru , Fuego.

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November 27, 2015. EN. Papandayan, Semeru , Fuego.

November 27, 2015.



Papandayan, Indonesia :

7.32°S, 107.73°E
Elevation 2665 m

PVMBG reported that during 1 September-16 November seismicity at Papandayan was dominated by shallow volcanic earthquakes but also consisted of deep volcanic earthquakes, low-frequency earthquakes, harmonic tremor, and hybrid events. Visual monitoring occurred from the Pakuwon Village post where observers noted white plumes rising at most 35 m above the crater. The Alert Level remained at 2 (on a scale of 1-4); residents and tourists were reminded not to approach the craters within a 1-km radius.


Papandayan is a complex stratovolcano with four large summit craters, the youngest of which was breached to the NE by collapse during a brief eruption in 1772 and contains active fumarole fields. The broad 1.1-km-wide, flat-floored Alun-Alun crater truncates the summit of Papandayan, and Gunung Puntang to the north gives the volcano a twin-peaked appearance. Several episodes of collapse have given the volcano an irregular profile and produced debris avalanches that have impacted lowland areas beyond the volcano. A sulfur-encrusted fumarole field occupies historically active Kawah Mas (« Golden Crater »). After its first historical eruption in 1772, in which collapse of the NE flank produced a catastrophic debris avalanche that destroyed 40 villages and killed nearly 3000 persons, only small phreatic eruptions had occurred prior to an explosive eruption that began in November 2002.


Source: Pusat Vulkanologi dan Mitigasi Bencana Geologi , Gvp.

Photo : S. Malassenet



Semeru, Indonésie:


8.108°S, 112.92°E
Elevation 3676 m


PVMBG reported that during 1 June-15 November both white plumes and gray-to-brownish plumes from Semeru were observed rising as high as 600 m above the crater and drifting in multiple directions; inclement weather sometimes prevented observations. The ash plumes were generated by frequent explosions; 32-74 explosions occurred per month during the June-October interval, although only 7 were counted during the first half of November. A few avalanches traveled 300-500 m S down the Besuk Kembar drainage during July-August. Two incandescent avalanches traveled 500 m down the drainage during 1-15 November. The Alert Level remained at 2 (on a scale from 1-4); visitors and residents were warned to avoid the SE flank within 4 km of the crater.


Semeru, the highest volcano on Java, and one of its most active, lies at the southern end of a volcanic massif extending north to the Tengger caldera. The steep-sided volcano, also referred to as Mahameru (Great Mountain), rises abruptly to 3676 m above coastal plains to the south. Gunung Semeru was constructed south of the overlapping Ajek-ajek and Jambangan calderas. A line of lake-filled maars was constructed along a N-S trend cutting through the summit, and cinder cones and lava domes occupy the eastern and NE flanks. Summit topography is complicated by the shifting of craters from NW to SE. Frequent 19th and 20th century eruptions were dominated by small-to-moderate explosions from the summit crater, with occasional lava flows and larger explosive eruptions accompanied by pyroclastic flows that have reached the lower flanks of the volcano. Semeru has been in almost continuous eruption since 1967.

Source: PVMBG

 Photo : tdm80clics.canalblog.


Fuego, Guatemala :

November 25, 2015, Time: 21: 05

Type: vulcanian.
Body type: Composite Stratovolcano
Geographical location: 14 ° 28 ‘54 »  Latitude N  ; 90 ° 52 ‘54 »    Longitude W.
Height: 3763.

The Fuego volcano in the last hours has undergone an increase in activity from the early morning of November 25, with the observation of the progress of two lava flows inside the canyon Trinidad and Santa Teresa on South and West flanks of the volcano.
The reports of the OVFGO at this time, notes the observation from 4 to 6 explosions per hour, accompanied by degassing sounds identical to those of a locomotive, with periods of 7 minutes. This activity is accompanied by moderate ash explosions up to 4500/4600 m hight.
These rumblings and explosions generate moderate to high sound shock waves, over 12 km, mainly to the south and the southwest flank.
This new phase of the Fuego volcano eruption is high, and there is the possibility of a new eruption in the next hours or days, similar or superior to this one.



Therefore, the INSIVUMEH recommends:
At the CONRED: Implement vigilance deemed necessary depending on the activity of Fuego volcano.
At the Directorate General of Civil Aviation, it is recommended to take precautions with the air traffic in the area of the Fuego volcano, following ash columns, ranging from 12 kilometers to the South, Southwest, and likely to move further.


Source : Insivumeh

Photo : 2014   CONRED / Eliceo Jimenez , Marcelo Jimenez.

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