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2011 Tōhoku earthquake and tsunami

The 2011 Tohoku earthquake, officially named the Great East Japan Earthquake, was a magnitude 9.0 (Mw) undersea megathrust earthquake off the coast of Japan that occurred at 14:46 JST (05:46 UTC) on Friday, 11 March 2011, with the epicenter approximately 72 km (45 mi) east of the Oshika Peninsula of Tōhoku and the hypocenter at an underwater depth of approximately 32 km (20 mi).
It was the most powerful known earthquake to have hit Japan, and one of the five most powerful earthquakes in the world overall since modern record-keeping began in 1900. The earthquake triggered extremely destructive tsunami waves of up to 38 meters (124 ft) that struck Japan, in some cases traveling up to 10 km (6 mi) inland.

I'm sure it's useful for us to study Earthquake this time by checking photos before and/or after quake.

(Miyagi Pre., Sendai Airport in 2003)

(Miyagi Pre., Sendai Airport at 3.12.2011)

(Sendai City Wakabayashi-Ku Arahama in 2008)

(Sendai City Wakabayashi-Ku Arahama at 3.12.2011)

(Fukushima Pre., South Souma in 2003)

(Fukushima Pre., South Souma at 3.12.2011)

(Fukushima Pre., South Souma in 2003)

(Fukushima Pre., South Souma at 3.12.2011)

In addition to loss of life and destruction of infrastructure, the tsunami caused a number of nuclear accidents, of which by far the most serious was an ongoing level 7 event and 20 km (12 mi) evacuation zone around the Fukushima I Nuclear Power Plant (see Fukushima I nuclear accidents). In Japan, the overall event is known as the "Eastern Japan Great Earthquake Disaster" (東日本大震災, Higashi Nihon Daishinsai). The overall cost could exceed $300 billion, making it the most expensive natural disaster on record.

The Japanese National Police Agency has confirmed 14,616 deaths, 5,278 injured, and 11,111 people missing across eighteen prefectures, as well as over 125,000 buildings damaged or destroyed. The earthquake and tsunami caused extensive and severe structural damage in Japan, including heavy damage to roads and railways as well as fires in many areas, and a dam collapse. Around 4.4 million households in northeastern Japan were left without electricity and 1.5 million without water. Many electrical generators were taken down, and at least three nuclear reactors suffered explosions due to hydrogen gas that had built up within their outer containment buildings after cooling system failure. Residents within a 20 km (12 mi) radius of the Fukushima I Nuclear Power Plant and a 10 km (6 mi) radius of the Fukushima II Nuclear Power Plant were evacuated. In addition, the U.S. recommended that its citizens evacuate up to 80 km (50 mi) of the plant.

By TS on May 4, 2011
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tag : Earthquake



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Author:T. SATOH