Earthquake hits Fukushima, Japan - Premiumstech: Tech News, How-Tos, Science and Health Tips



Earthquake hits Fukushima, Japan

A report reaching us has it that a city Fukushima in Japan has been hit by an earthquake of magnitude 6.9. The earthquake struck yesterday off the coast of Fukushima, Japan, unleashing a massive 9.0-magnitude temblor that triggered deadly tsunamis and caused

widespread destruction.
It is widely believed that the reason this great nation is mostly struck by dangerous Earthquakes in the history of mankind is because of its location. The country is situated along the pacfic ring of Fire, an imaginary horseshoe-shaped zone that follows the rim of the Pacific Ocean, where many of the world's earthquakes and volcanic eruptions occur. In fact, 81 percent of the world's largest earthquakes happen in this active belt, according to the U.S. Geological Survey (USGS).

Within the Pacific Ring of Fire, several tectonic plates mash and collide. In what are known as subduction zones, one plate bends and slides underneath the other, causing the oceanic crust to sink into the Earth's mantle.
Japan itself sits atop a complex mosaic of tectonic plates that grind together and trigger deadly earthquakes and volcanic eruptions.
Yesterday's earthquake off the coast of Fukushima was centered about 80 miles (130 kilometers) southwest of the epicenter of the 9.0-magnitude Tohoku quake that struck in March 2011. This means the magnitude-6.9 temblor could be an aftershock of the more-powerful 2011 quake, according to seismologists.

The 2011 earthquake released hundreds of years of pent-up stress within the subduction zone and triggered an enormous tsunami that inundated the coastal Fukushima Daiichi Nuclear Power Plant, eventually causing a level 7 nuclear meltdown. While yesterday's quake was not as powerful as the Tohoku temblor, the entire region is still at risk of big earthquakes.

The Tohoku quake "was one of the biggest earthquakes we've recorded historically, but the fact is, the seismic hazard of the whole subduction zone is extremely high, so large earthquakes are more common there than other places.

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