November 29 , 2016. EN. Sabancaya , Cascades Range , Turrialba , Copahue , Suwanose-Jima.

Home / blog georges Vitton / November 29 , 2016. EN. Sabancaya , Cascades Range , Turrialba , Copahue , Suwanose-Jima.

November 29 , 2016. EN. Sabancaya , Cascades Range , Turrialba , Copahue , Suwanose-Jima.

November 29 , 2016.


Sabancaya , Peru :

We issue a notice of emission of ashes for an explosion recorded at 11:01 on the Sabancaya. The Scientific and Technical Committee for the Management of Volcanic Risk in Arequipa, composed of the Volcanological Observatory of the South and the INGEMMET Volcanological Observatory, informs about current events concerning the activity of this massif.

DATE: November 28, 2016
LOCAL TIME: 11 hours 01 minutes
Direction of dispersion of the ash column: It is directed in the direction South-South-East of the Sabancaya
HEIGHT OF THE COLUMN: about 2000 meters above the crater.
Dispersion distance: 30 km
VILLAGES and affected areas: South and Southeast of the province of Caylloma.


• During this week, seismicity was mainly represented by events associated with the emission of ash (Tremor). Events related to the rise of magma (hybrids) and fluid movements (LPs) have increased slightly. 288 explosions were recorded.
• There were various thermal anomalies (Mirova system) in the area of the volcano, up to 7 MW. This indicates the presence of a warm body near the surface.
• The eruptive columns of gas and ash reached 4300 meters above the summit of the volcano, with predominant directions to the east and south-east, reaching a radius of 30 km – 40 km.
• There were small signs of deformation on the southeast flank of the volcano.
• The volcanic gas flow (SO2) records a maximum value of 3299 tonnes / day.



Keep informed by reports published jointly by OVI and OVS.
• Do not approach the volcano within 10 km.
• If ash falls: cover your nose and mouth with a damp cloth or mask.
• Clean your eyes and cool the throat with pure water.
• Avoid wearing contact lenses.
• Keep the windows closed.
• Implement actions to prevent and mitigate the increase in activity

Source : IGP

Photo : Ingemmet / volcanodiscovery


 Cascades Range ,  United – States :

Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Activity Update: All volcanoes in the Cascade Range of Oregon and Washington are at normal background levels of activity. These include Mount Baker, Glacier Peak, Mount Rainier, Mount St. Helens, and Mount Adams in Washington State; and Mount Hood, Mount Jefferson, Three Sisters, Newberry, and Crater Lake in Oregon.


Afficher l'image d'origine

Mont Rainier

Recent Observations: A few small earthquakes, consistent with normal levels of seismicity, were recorded at Mount Rainier and Mount St. Helens during the past week. Some Pacific Northwest Seismic Network (PNSN) seismograms appear to show an uptick in activity, which is the due to periods of heavy rain and high wind over the past several days.

The U.S. Geological Survey and Pacific Northwest Seismic Network (PNSN) continue to monitor these volcanoes closely and will issue additional updates and changes in alert level as warranted.

Source: CVO

Photo : potionsetlunes.


Turrialba , Costa Rica :

26 November 2016

The Turrialba volcano maintains a low amplitude of tremor with low levels of activity. The emission of gases, aerosols and ashes produce a plume that does not exceed 500 meters above the crater.
During the day of the 26th, a seismic signal of earthquakes of low magnitude associated with the internal activity of the volcano was observed at the VTUN station.



At the time of this report, the direction of the wind is southwesterly and no ash fall or sulfur odor is reported.

Source : Ovsicori

Photo : Archive


Copahue , Chile :

Special volcanic activity report (REAV)
Region of Bio Bio. 28 November 2016 0030 hours (local time).

The National Service of Geology and Mining (SERNAGEOMIN) publishes the following information obtained by the teams of the National Observatory Volcanic Monitoring Network, processed and analyzed at the Volcanological Observatory of Southern Andes, interpretation center data of the SERNAGEOMIN:

Today, Sunday 27 November 2016 at 23:33 local time (02:33 GMT 28 November), the monitoring stations installed near the Copahue volcano recorded one (1) earthquake associated with rock fracturing (volcano – tectonics), the event was located 4.6 km north-northwest (NNO) of the crater El Agrio.



The location was located as follows:
Original Time: Hl 23h33 (GMT -3)
Latitude: 37 ° 49 ‘2.39 « South, Longitude 71 ° 10’ 50.40 » West.
Depth: 1.4 km
Local magnitude: 3.1

At the time of this report, there were 12 minor replicas. There is no information from authorities or communities about perceptions in neighboring areas.
The level of technical volcanic alert remains at yellow.
SERNAGEOMIN continues on-line monitoring and reports on changes in volcanic activity in the region in a timely manner.


Source : Sernageomin


Suwanose-jima ,  Ryukyu islands , Japan:

 The volcano continues to be in a phase of elevated activity which started gradually after around mid November. Webcams show intense glow, presumably generated by frequent explosions and / or the presence of a lava dome (or lava lake) in the active Otake crater in the northern end of the small island.


Low-level, but relatively intense ash emissions have been accompanying the eruption, reaching altitudes of up to approx. 1500 m elevation. The activity and its ash plumes, as long as it is at the current level only, pose no great risks, except to areas in the vicinity of the crater itself and low-flying small aircraft. Depending on wind direction, ash falls can affect infrastructure, in particular the (small) agricultural activity of the tiny population on the island.

Source : Volcanodiscovery ( T Pfeiffer)

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