November 23 , 2016. EN. Ubinas , Zhupanovsky , Fuego , Reventador .

Home / blog georges Vitton / November 23 , 2016. EN. Ubinas , Zhupanovsky , Fuego , Reventador .

November 23 , 2016. EN. Ubinas , Zhupanovsky , Fuego , Reventador .

November 23 , 2016.

 

Ubinas , Peru :

Volcanic and seismic monitoring.

Seismicity of LP type, related to the movement of fluids (water, water vapor and gas), has low values in their number of events and their energy during the last six days of recording, with a minimum of 41 Events LP / day and 0.3 MJ of energy compared to the 106 earthquakes and 1.0 MJ of energy observed on average over this period.
Hybrid events related to magma upturn increased slightly over the past week, reaching a maximum of 55 events and 1.2 MJ of energy. On average, 14 Hib / day and 0.2 MJ of energy per day were observed at this stage of the study.
VT seismicity, associated with rock fracturing, remains high even with low seismic energy values. During this period, 4900 VT events were recorded with a rate of 327 events per day, slightly higher than that observed at the beginning of October (217 VT / day).

 

ubinas

Satellite Surveillance:

 Thermal anomalies and SO2: The Mirova system (www.mirovaweb.it) did not detect any thermal anomalies for this period. The satellite system « EOS Aura » GSDM-NASA (http://so2.gsfc.nasa.gov/) shows an anomaly of the density of SO2 gas, which was recorded on October 29. The observed value was 6.7 DU (Dobson units) . A similar figure was detected on 8 April 2015 (5.9 AU) when the explosive phase of this period was restarted.

Visual Surveillance:

During this period (October 19 – November 2), the fumaroles of the Ubinas volcano were characterized by sporadic emissions of magmatic steam and gas, which reached a maximum height of 1500 meters above the edge of the crater. In addition, for a few days (20 and 28 October), intense cloudiness and precipitation that fell on the volcano were observed. No explosions or expulsions of ash occurred during this period.

 

CONCLUSIONS
The main seismic events have slightly increased their level of activity. Hybrid type events still recorded suggest a deep magma movement and VT type earthquakes indicate an accumulation of internal pressure under the Ubinas volcano. Therefore, the possibility of explosions and / or ash emissions persists.

Source : IGP

Photo : Wetl , Igp.

 

Zhupanovsky , Kamchatka :

53.59 N, 159.15 E;
Elevation 9702 ft (2958 m)
Aviation Color Code is YELLOW

A moderate activity of the volcano continues. Satellite data by KVERT showed the volcano was obscured by clouds.

 

zhupanovsky

Zhupanovsky volcano was quiet after the eruption on November 20, 2016. Satellite data by KVERT showed the volcano was quiet since that time.

Moderate fumarole activity of the volcano continues. Ash explosions up to 19,700-26,240 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.

Source : Kvert.

Photo : A. Sokorenko. IVS FEB RAS

 

Fuego , Guatemala:

End of the paroxysm of the Fuego volcano.

Type: vulcanian
Morphology: composite stratovolcano
Geographical location: 14 ° 28’54˝ Latitude N; 90 ° 52’54˝ longitude W.
Height: 3,763msnm.

fuego

The eruption of the Fuego volcano No.15 is over, showing a decline in activity as indicated by the RSAM graph and the observations made by the observatory of the Fuego volcano.
It maintains low to moderate characteristic explosions, creating an ash column at a height of about 4,500 meters (14,763 feet) moving over more than 10 kilometers around the volcanic perimeter, to the south and southwest. Remain weak sounds similar to locomotive machines with periods of 1 to 2 minutes.
Remains  the lava flows of the eruption have been observed to the Las Lajas, Trinidad and Ceniza canyons, they may disappear completely within the next few hours, moderate avalanches are also observed on the outline of the crater.

fuego

Therefore, INSIVUMEH recommends:
To CONRED: to take the precautions it deems necessary because of the increased activity of the Fuego volcano.
In the Directorate General of Civil Aviation: We recommend taking precautions with air traffic, because the ash column reaches a maximum height of about 5,000 meters (16,404 feet) moving southwest.
Tourist and tourist agencies: The explosive activity of the Fuego can generate ballistic falls on the « meseta », so it is recommended not to stay or camp in this area.

Source : Insivumeh

Photos : Martin Rietze , Insivumeh.

 

Reventador , Ecuador :

Volcano Activity Bulletin n ° 327
Tuesday, 22 November 2016

SUMMARY OF VOLCAN ACTIVITY:

The volcano was maintained with high internal activity. During the afternoon of yesterday, the volcano was observed completely cleared. In the evening of yesterday and earlier today, an incandescence was observed in the crater. In the morning it was clear and we could see several emissions of steam and gas with an average ash content rising 1000 meters above the crater to the west. Right now, the area is clear.

 

http://www.nacion.com/mundo/autoridades-alrededores-Reventador-Quito-registrarse_LNCIMA20140327_0116_1.jpg

TECHNICAL APPENDIX AND OBSERVATIONS

Seismicity: From 11h00 (TL) yesterday until 11h00 (TL) today, there were recorded 60 explosions (EXP), 29 events long period (LP), 9 episodes of tremor of emission (TRE) and 4 episodes of harmonic tremor (TRA).

Notes: During the afternoon of yesterday, the volcano was observed completely cleared. In the evening of yesterday and earlier today, an incandescence was observed in the crater.

 

Afficher l'image d'origine

In the morning it was clear and we could see several emissions of steam and gas with an average ash content rising 1000 meters above the crater to the west. Right now, the area is clear.
Rains and lahars: There were no rains or lahars.

Source : IGEPN

Photos : Afp , Juan Carlos Diaz .

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