Seawater becoming yellowish green in 2km and 4km area offshore volcanic island in South of Tokyo

Seawater becoming yellowish green in 2km and 4km area offshore volcanic island in South of Tokyo

Following up this article.. Volcanic island in South of Tokyo increasing volcanic ash [URL]

 

On 5/22/2015, the Maritime Safety Agency reported the color of seawater is changing offshore the volcanic island.

In their aerial survey carried out on 5/20/2015, the seawater was observed to be turning to be pale yellow-green in 4000m and 2000m area, where is in South West offshore of the island.

Prof. Nogami from Tokyo Inst. of Technology, who attended the aerial survey, comments there is a possibility that magma is becoming increasingly actively rising underground.

He added it won’t explosively erupt soon, however seawater has turned to be dark brown also in 1000m and 500m area of South East side of the island. Additionally, pale yellow-green color of seawater was spreading in 400m and 800m area of North and South side of the island.

The island is still erupting 2-3 times a minute. The island is still growing in S-E direction.

 

Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area 4 Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area 3 Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area 2 Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area

 

http://www.kaiho.mlit.go.jp/info/kouhou/h27/k20150522/k150522-1.pdf

 

 

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Français :

Au large de la nouvelle île volcanique au Sud de Tokyo, l’océan devient jaune-vert sur 2 x 4 km

 

Article lié : L’île volcanique au Sud de Tokyo crache encore plus de cendres

Le 22 mai 2015, la Maritime Safety Agency a rapporté que la couleur de la mer avait changé au large de la nouvelle île volcanique.

Le 20 mai 2015, ils ont remarqué au cours d’une observation aérienne que l’océan était devenu jaune-vert clair sur une étendue de 4 000 par 2 000 m au sud-ouest au large de l’île. Cette couleur jaune-vert clair se retrouve aussi sur 400 par 800m au nord et au sud de l’île. De plus, L’océan est également devenu brun foncé sur une surface de 1000 par 500 m au sud-est de l’île.

Le Pr. Nogami du Tokyo Inst. of Technology qui y participait a déclaré qu’il était possible que le magma remonte de plus en plus des profondeurs. Il a ajouté qu’il n’y aurait pas d’éruption explosive d’ici peu.

L’île entre toujours en éruption 2 à 3 fois par minute. Elle s’agrandit toujours en direction du S-E.

Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area 4 Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area 3 Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area 2 Seawater offshore the volcanic island in South of Tokyo observed changing for 2km and 4km area

http://www.kaiho.mlit.go.jp/info/kouhou/h27/k20150522/k150522-1.pdf

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