June 18 , 2017. EN. Nishinoshima , Misti , Ubinas , Fuego .

Home / blog georges Vitton / June 18 , 2017. EN. Nishinoshima , Misti , Ubinas , Fuego .

June 18 , 2017. EN. Nishinoshima , Misti , Ubinas , Fuego .

June 18 , 2017. 

 

Nishinoshima , Japan :

 

Volcanic island erupts at perfect time for ship passenger – ASAHI SHIMBUN

17 JUNE 2017. A photographer was in the right place at the right time to take spectacular pictures of volcanic eruptions on Nishinoshima island in the Pacific Ocean on June 16. Kazuyoshi Miyoshi, 58, shot the photographs aboard the passenger ship Nippon Maru, which was about 2 kilometers from the uninhabited island located about 1,000 km south of central Tokyo.

 

L’image contient peut-être : nuage, ciel et nature

The vessel sailed around the island for about one hour, and volcanic eruptions occurred once in every several minutes during that period. Miyoshi said he heard an explosive sound “don” with each eruption and saw black volcanic ashes falling from the sky. When dusk arrived and it became darker, the brightness of the lava became more conspicuous.

“I never thought that I would be able to take photos of such impressive scenes,” Miyoshi said. “I became excited when the shape of the mountain became clear and beautiful with the red lava.” In 2013, undersea volcanic eruptions created a new island near Nishinoshima. The continuing lava flow increased the size of the new landmass, and it eventually connected to Nishinoshima, part of the Ogasawara island chain.

 

 

L’image contient peut-être : ciel, montagne, nuit, nature et plein air

 

After that, the volcanic activity subsided. But in April this year, the island erupted for the first time in 17 months. Miyoshi is known for his “Rakuen” (Paradise) series of photo collections, which include pictures of the natural scenes in the Ogasawara chain.

 

Source :  ASAHI SHIMBUN

Photos : Nishinoshima island in the Ogasawara island chain south of Tokyo spews up molten rocks in the dusk . June 16.   Kazuyoshi Miyoshi.

 

 

Misti , Peru  :

Summary of activity between 01 and 15 June 2017.

1. Sismo-volcanic monitoring.

– The seismic activity of the Misti volcano remains weak.
– Complex LF earthquakes (double events related to fracturing and fluid pressure processes) show the occurrence of on average an earthquake per day, very low energy levels.
– Volcano-tectonic (VT) events associated with fracture processes retained the same level of activity observed during the previous period, ie 38 VT per day. This type of seismic activity was located under the volcano between 0.5 km and 2 km depth, generating amplitudes up to M 2.9 (not perceived by the population).

 

Résultat de recherche d'images pour "misti"

2. Satellite Surveillance:

– Thermal anomalies: The Mirova system (www.mirova.unito.it) of the University of Turin (Italy) has not detected thermal anomalies on the Misti volcano for this period (VPR = 0 Megawatts).
– SO2 abnormalities: The satellite system « EOS Aura » GSDM-NASA (http://so2.gsfc.nasa.gov/) did not detect any major anomalies density of SO2 gas (magmatic gases) on the volcano Misti.

Résultat de recherche d'images pour "misti"

Conclusions:

– The volcanic activity of Misti remains weak.
– Complex LF-type events exhibited on average one event per day with a low energy level, whereas VTS-type earthquakes maintained the same level of activity as in the previous fortnight.
– Fracture or VT activity was located under the volcano between 0.5 km and 2 km depth. These earthquakes are not perceived by the population.
– No thermal anomalies or high values of SO2 gas density were detected on the Misti volcano.

Source : IGP

 

Ubinas, Peru:


1. Sismo-volcanic monitoring.

– During this period, a slight increase in seismic activity compared to the last months, where there were usually between 2 and 4 events per day, was observed. During the last week of analysis (from 09 to 15 June), a peak of 29 hybrid-type events related to the rise / magma movements, and 18 fracture-type earthquakes (VTs) were recorded. Thus, the average daily frequency increased from 2 to 19 events per day.
– In addition, in these 15 days of observations, the appearance of the generation of seismic fractures of distal character or VTDs (events with an epicenter more than 4 km from the crater), the same ones that were located by the seismic network of the volcano Ubinas, between 8 and 12 km in the North and Northwest of the massif.

 


– All of this dynamics indicates that apparently a magmatic body has tried to go back from the depths, generating efforts that have produced rock-type earthquakes around the volcano. Although since 12 June 12, it has been found that the appearance of these earthquakes has begun to decrease, we remain careful to inform in a timely manner whether a recovery of the explosive activity of the volcano occurs.

2. Satellite Surveillance:

– Thermal anomalies and SO2: The Mirova system (www.mirovaweb.it) did not detect any thermal anomalies for this period. In addition, the GSDM-NASA satellite system « EOS Aura » (http://so2.gsfc.nasa.gov/) did not detect any significant anomalies of SO2.

3. Visual Surveillance:
– In this period, he appreciated a bluish-tinted emission in small quantities and sporadically. The smoking activity was characterized by degassing of water vapor. However, on June 15 in the morning, the magmatic gases reached a maximum height of 400 m.

 Conclusions:

– In general, the sismo – volcanic activity of the Ubinas remains weak. During this period, there was a slight increase in the recording of hybrid earthquakes and VTs from June 9
– Although this activity has shown a downward trend since June 12, we remain careful to inform in a timely manner whether a restart of the explosive activity of the Ubinas presents itself.

Source : IGP

 

Fuego , Guatemala :

Special Volcanological Bulletin, Guatemala 16 June 2017, 10:30 (Local Timetable)

Increased activity of the Fuego volcano.

Activity type: Vulcanian
Morphology: Stratovolcan composite
Geographical location: 14 ° 28’54 « Latitude N; 90 ° 52’54 » Longitude W.
Altitude: 3,763 msnm.

 

As noted earlier, the Fuego volcano continues its high level of activity. Vulcanous explosions are observed in moderate to strong form, characterized by continuous, abundant ash expulsions, which may last for several minutes.
These columns of ashes reaching 4,800 meters (15,748 feet) dissipate towards the West – South – West for 25 kilometers of distance. Gusts of wind can carry the fine ash particles further away. The Fuego Volcano Observatory reported ash falls in the villages of Panimache, Morelia, Hagia Sophia and Santa Lucia Cotzumalguapa. This ash is fine and could extend further

Source : Insivumeh

Photo : David Rojas

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