Japanese earthquake in 2011 still goes around comes around

Geological vicinity of Japan. The epicenter of the earthquake in 2011 shows the oval to the east of the islands near the Japan Trench. (Image AAAS / Science.)

A powerful earthquake that struck the east coast of Japan in March 2011, woke faults near the dormant plant "Fukushima-1" and "Fukushima-2."

"Strong earthquakes may occur in the fault Futaba only 5-6 km from the nuclear reactor," — emphasizes Dapeng Zhao of Tohoku University. This fault runs along the coast just past the two nuclear power plants.

Group, Mr. Zhao has analyzed data for more than 6 thousand earthquakes in the period from June 2002 to October 2011 and has developed a 3D-map of the earth's crust in the area affected by the biggest aftershock after the disaster — the earthquake in IVIC April 11. The resulting images showed fluid in raising the Pacific plate, leaving at Japan. According to scientists, the March earthquake transferred stress fractures around, forcing them to "prepare" for aftershocks. The fluid in the fault IVIC oiled it, and it almost immediately slipped, making the push magnitude 7.0.

Seismic performance of Fukushima revealed tension and lift the liquid similar to those reported in IVIC. Therefore, the researchers concluded that the probability of an earthquake today is even higher than before the stimulus on March 11.

Earthquake of magnitude 7.0, of course, can not be compared with the push of the power of 9.0, hit March, but Futaba fault is much closer to the plant than the epicenter of last year's disaster, so the damage can be more.

The study is published in the journal Solid Earth.

Prepared according to NewScientist.

Source: science.compulenta.ru.

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