Tokyo:An earthquake measuring 4.7 on the Richter scale struck Monday northern Tatsugo, Japan. The epicenter of the earthquake was located 106 km ...

The scale is logarithmic, with each step equivalent to multiplying by 10 to the power of 1.5. This means a 6.0 magnitude earthquake has approximately 32 times more energy than a 5.0 quake, and a 7 ...

Sunday's earthquake in Sumatra had a preliminary magnitude of 9.0, classifying it as a great quake and making it the strongest in 40 years.

The scale is logarithmic, with each step equivalent to multiplying by 10 to the power of 1.5. This means a 6.0 magnitude earthquake has approximately 32 times more energy than a 5.0 quake, and a 7 ...

The powerful earthquake that struck Japan in March was a 9.0-magnitude event. But this was not, as some people may assume, as registered on the Richter scale, the famed measuring system dating to ...

How we measure them. Charles F. Richter developed the Richter scale in 1935 as a mathematical device to compare the size of earthquakes. The magnitude of an earthquake is recorded by a seismograph.

On December 26, a massive earthquake measuring 9.1 on the Richter scale strikes off the coast of Sumatra, triggering a tsunami that kills more than 230,000 throughout the region, including 170,000 ...

The epicenter of the Tōhoku earthquake that occurred off the coast of Japan in 2011 and damaged the Fukushima Daiichi Nuclear Power Plant occurred in the relatively deep water of the Japan Trench. Yet ...

The estimated 5.4 magnitude earthquake ... Earthquakes between 5.0 and 5.9 are considered moderate on the Richter scale, with up to 1,500 of those recorded annually around the world.

Despite being felt, it was considered a relatively weak earthquake. The Richter scale, which is the tool used to measure the strength of earthquakes, goes up to 10, and the U.S. Geological Survey ...

Ohio was hit with an earthquake on April 22 that registered as a 3.1 magnitude on the Richter Scale. Like the Heimlich maneuver or the Cleveland Browns, the invention is probably more famous than ...