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Japan Woke Up to 6.9 Earthquake, No Tsunami, N-Plants Safe

Japan has lifted a tsunami warning after the north-eastern coast was jolted by an earthquake measuring 6.9 magnitude on Richter scale, probably a sequel to 2011 March earthquake, said seismologists.

Post-quake, small waves of 10 to 20 CM reached the coast off Iwate prefecture, 600 km north of Tokyo, said NHK TV adding that local people had been ordered to evacuate.

“This quake is an aftershock of the 2011 quake that hit the Tohoku region,” Japan Meteorological Agency (JMA) seismologist Yasuhiro Yoshida told reporters.

The region witnessed massive earthquake measuring 9M in 2011, and a tsunami devastated the region killing 18,000 people and also triggered a nuclear accident in Fukushima plant nearby.

The US Geological Survey (USGS) said the earthquake had a magnitude of 6.8, while the JMA had recorded it at 6.9.

Event TimeMap showing extent (w,s,e,n) = (137.8901, 34.8297, 147.8901, 44.8297)

  1. 2015-02-16 23:06:27 (UTC) ; 8.00 am (Local Japan Times)

Nearby Cities

  1. 83km (52mi) ENE of Miyako, Japan
  2. 90km (56mi) ENE of Yamada, Japan
  3. 99km (62mi) ENE of Otsuchi, Japan
  4. 106km (66mi) NE of Kamaishi, Japan
  5. 538km (334mi) NNE of Tokyo, Japan

The quake occurred at a depth of about 10 km and struck the region at 8:00am (local time), with the epicentre located 210 kilometres east of Miyako town, the JMA said.

The Pacific Tsunami Warning Centre in Hawaii said there was no danger of a Pacific-wide tsunami, though the magnitude is very high.

Tohoku Electric Power Co (TEPCO), which operates the Onagawa and Higashidori nuclear plants in Miyagi and Aomori prefectures, said the plant is fina after the quake and no irregularities were found.

All the 48 nuclear reactors in the country went offline after the March 2011 earthquake and tsunami.

Japan falls in the Pacific Ring which witnesses constatn tectonic movements and earthquakes. Japan alone is hit by 20% of these earthquakes with a magitude of 6 or more.

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