Geographical Survey Institute, “M6.2 caused Miyake-jima diastrophism of 2cm to NE”

According to the Geographical Survey Institute, the M6.2 earthquake caused Miyake-jima island diastrophism.

At 17:57 of 4/17/2013, M6.2 hit Miyake-jima island with numbers of other quakes.

(cf, Over 20 earthquakes hit Miyake-jima island within 9 hours, Meteorological agency, “No volcanic activity observed” [URL])

The epicenter of the M6.2 was in the west of Miyake-jima. At the observation stations on the west coast and the north coast of the island, diastrophism of 1.5cm to the North and 1.5cm to the East was measured.

The Authority is going to keep observing the seismic activity.

On 4/18/2013, the Metropolitan Police Dept reported they found the change of the seawater color but the Maritime Safety Agency took down the hazard only 5 hours later.

(cf, Metropolitan Police Dept found seawater turned green near Miyake-jima, Maritime Safety Agency “No abnormality found” [URL 2])



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Geographical Survey Institute : Le M6,2 a provoqué un diastrophisme de 2 cm vers le NE de l’île de Miyake-jima


Selon le Geographical Survey Institute, le séisme M6,2 a provoqué un diastrophisme (déformation de la croute terrestre) à l’île de Miyake-jima.

Le 17 avril 2013 à 17:57, un M6,2 a frappé l’île de Miyake-jima ainsi que de nombreux autres séismes. (cf. Une vingtaine de séismes frappent l’île de Miyake-jima en 9 heures, l’agence Météorologique : Pas d’activité volcanique observée)

L’épicentre du M6,2 était à l’ouest de Miyake-jima. Dans les stations d’observation de la côte ouest et de celle du nord de l’île, on a relevé un diastrophisme de 1,5 cm vers le nord et un autre de 1,5 cm vers l’est.
Le service va continuer à surveiller l’activité sismique.

Le 18 avril 2013, le Metropolitan Police Dept avait rapporté avoir découvert un changement de la couleur de la mer mais la Maritime Safety Agency a retiré l’avis d’alerte seulement 5 heures plus tard. (cf. Le dept. de la police métropolitaine a découvert que l’eau de mer devenait verte près de Miyake-jima, l’Agence de Sécurité Maritime n’a “rien trouvé d’anormal”)

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About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


April 2013