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TOKYO: A powerful earthquake measuring 7.0 on the Richter scale struck northern Japan Saturday, the meteorological agency said.
The earthquake hit in Iwate prefecture, some 500 kilometres (300 miles) north of Tokyo, and rattled buildings in the capital.
Television footage showed buildings also shaking in northern cities of Japan. Bullet trains were automatically shut down as a precaution.
The quake had a depth of 10 kilometres (six miles), the agency said.
There was no immediate word on potential damage or casualties, and the agency did not issue a tsunami warning.
A new earthquake warning system kicked in for the quake, with public broadcaster NHK flashing an alert moments before it struck.
Japan endures some 20 percent of the world's powerful earthquakes. It has built an infrastructure intended to withstand tremors.
Originally posted by IronDogg
I guess it was 6.4. It happened half a mile nw of Sakanazawa, Akita-ken. Depth was 40 km.
hisz.rsoe.hu...
Depth 10.3 km (6.4 miles) (poorly constrained)
Unusual Earthquake Swarm Off Oregon Coast Puzzles Scientists
Oregon State University’s Hatfield Marine Science Center have recorded more than 600 earthquakes in the last 10 days off the central Oregon coast in an area not typically known for a high degree of seismic activity.
DATES FROM & TO PERIOD NO. EARTHQUAKES (Mag. > 6.99)
1863 to 1900 incl 38 yrs 12
1901 to 1938 incl 38 yrs 53
1939 to 1976 incl 38 yrs 71
1977 to 2014 incl * 38 yrs 128 (to May 2008) predict >180 in total.
Originally posted by cosmicstorm
there is a thread where someone predicted this, but i think he said it would be a 9.1.... i shall have to try and dig it up..
[edit on 14-6-2008 by cosmicstorm]
Mr Benn told Sky News: "We set up an independent committee which looked at all the options, and the best thing to go for is storing the nuclear waste underground in a geological fault.
There was a project some years ago that some west coast americans could get rid of waste, sewage and other undesirable materials by pumping it into fault lines along the san andreas system, this actually caused earthquakes.
The most famous episode of a human-induced earthquake began in 1961, when a 12,000-foot disposal well was drilled in the U.S. Army's Rocky Mountain Arsenal northeast of Denver. The well was used for disposing of waste fluids from arsenal operations, and injection commenced in March 1962.
Shortly thereafter an unusual series of earthquakes erupted in the area, and by the end of December 1962 about 190 earthquakes had occurred. None caused damage until December, when several structures were damaged in Dupont and Irondale.
Over 1,300 earthquakes were recorded between January 1963 and August 1967. In April 1967 the largest earthquake since the series began in 1962 occurred, and damage was recorded in the arsenal, Derby and Boulder. This tremor measured 5.0 on the Richter scale.
Even after the Rocky Mountain Arsenal waste dumping practice stopped, earthquakes continued to be felt in the Denver area, so in 1968 the Army began removing fluid from the arsenal well very slowly in an effort to reduce the earthquake activity.