Japan Rocked By Large Earthquake Today

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(Best Syndication News) Today a large earthquake rocked the ocean off the coast of Japan (see maps below). The 7.2 magnitude earthquake struck off the east coast of Japan, or more precisely 193 km (119 miles) southeast of Morioka, Honshu.

The large distance from the epicenter reduced the risk of casualties or damage. The large earthquake was felt as far away as Tokyo where buildings reportedly rocked back and forth.

There was a tsunami warning issued and a 24 inch (60cm) tsunami did hit the town of Ofunato.

The U.S. Geological Survey reports that the quake hit at 11:45 am local time on Wednesday March 9th 2011. A 6.3 magnitude aftershock struck soon after. The depth of this earthquake is estimated to be 1.1 miles (1.8 km) below the surface of the earth.

Japan, like New Zealand and the west coast of the United State, is located on the Ring of Fire, a region of frequent earthquakes. See the maps below.

The largest recorded earthquake to strike Japan was the 8.6 magnitude Hōei earthquake which struck the island chain on October 28, 1707. That tumbler killed more than 5,000 people.

A huge 8.3 earthquake hit the island chain on September 1, 1923 killing more than 100,000 people.

The last major earthquake hit on December 21, 2010 (Bonin Islands earthquake). That was a 7.4 magnitude quake.

There are numerous trenches located around the Pacific Ocean. The Japan Trench extends from the Kuril Islands to the Bonin Islands and is 9,000 m (30,000 ft) at its deepest. The trench is created when the Pacific plate subducts beneath the continental Eurasian plate. The friction of this process creates numerous earthquakes.

By: Dan Wilson

Click here: Japan Earthquake 2011 - March 11, 2011 - Largest Ever Recording in Japan and 7th largest in World

Pacific Ring of Fire

World Fault Line Map

Earthquake in Japan

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